Sequences

392,541 sequences

Palindromic lucky numbers.A031161
Palindromic lucky numbers.
Numbers that are both lucky and square.A031162
Numbers that are both lucky and square.
Square roots of numbers that are both lucky and square.A031163
Square roots of numbers that are both lucky and square.
Irreducible Euler sums of weight 8 and depth 10+2n.A031164
Irreducible Euler sums of weight 8 and depth 10+2n.
a(n) = prime(n+3) - prime(n).A031165
a(n) = prime(n+3) - prime(n).
a(n) = prime(n+4) - prime(n).A031166
a(n) = prime(n+4) - prime(n).
a(n) = prime(n+5) - prime(n).A031167
a(n) = prime(n+5) - prime(n).
a(n) = prime(n+6) - prime(n).A031168
a(n) = prime(n+6) - prime(n).
a(n) = prime(n+7) - prime(n).A031169
a(n) = prime(n+7) - prime(n).
a(n) = prime(n+8) - prime(n).A031170
a(n) = prime(n+8) - prime(n).
a(n) = prime(n+9) - prime(n).A031171
a(n) = prime(n+9) - prime(n).
a(n) = prime(n+10) - prime(n).A031172
a(n) = prime(n+10) - prime(n).
Longest edge a of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).A031173
Longest edge a of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).
Intermediate edge b of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).A031174
Intermediate edge b of smallest (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).
Shortest edge c of (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).A031175
Shortest edge c of (measured by the longest edge) primitive Euler bricks (a, b, c, sqrt(a^2 + b^2), sqrt(b^2 + c^2), sqrt(a^2 + c^2) are integers).
Periods of sum of squares of digits iterated until the sequence becomes periodic.A031176
Periods of sum of squares of digits iterated until the sequence becomes periodic.
Unhappy numbers: numbers having period-8 2-digitized sequences.A031177
Unhappy numbers: numbers having period-8 2-digitized sequences.
Periods of sum of cubes of digits iterated until the sequence becomes periodic.A031178
Periods of sum of cubes of digits iterated until the sequence becomes periodic.
Numbers having period-1 3-digitized sequences.A031179
Numbers having period-1 3-digitized sequences.
Numbers having period-2 3-digitized sequences.A031180
Numbers having period-2 3-digitized sequences.
Numbers having period-3 3-digitized sequences.A031181
Numbers having period-3 3-digitized sequences.
Periods of sum of fourth powers of digits iterated until the sequence becomes periodic.A031182
Periods of sum of fourth powers of digits iterated until the sequence becomes periodic.
Numbers having period-1 4-digitized sequences.A031183
Numbers having period-1 4-digitized sequences.
Numbers having period-2 4-digitized sequences.A031184
Numbers having period-2 4-digitized sequences.
Numbers having period-7 4-digitized sequences.A031185
Numbers having period-7 4-digitized sequences.
Periods of sum of 5th powers of digits iterated until the sequence becomes periodic.A031186
Periods of sum of 5th powers of digits iterated until the sequence becomes periodic.
Numbers having period-1 5-digitized sequences.A031187
Numbers having period-1 5-digitized sequences.
Numbers having period-2 5-digitized sequences.A031188
Numbers having period-2 5-digitized sequences.
Numbers having period-4 5-digitized sequences.A031189
Numbers having period-4 5-digitized sequences.
Numbers having period-6 5-digitized sequences.A031190
Numbers having period-6 5-digitized sequences.
Numbers having period-10 5-digitized sequences.A031191
Numbers having period-10 5-digitized sequences.
Numbers having period-12 5-digitized sequences.A031192
Numbers having period-12 5-digitized sequences.
Numbers having period-22 5-digitized sequences.A031193
Numbers having period-22 5-digitized sequences.
Numbers having period-28 5-digitized sequences.A031194
Numbers having period-28 5-digitized sequences.
Periods of sum of 6th powers of digits iterated until the sequence becomes periodic.A031195
Periods of sum of 6th powers of digits iterated until the sequence becomes periodic.
Numbers having period-3 6-digitized sequences.A031196
Numbers having period-3 6-digitized sequences.
Numbers having period-4 6-digitized sequences.A031197
Numbers having period-4 6-digitized sequences.
Numbers having period-10 6-digitized sequences.A031198
Numbers having period-10 6-digitized sequences.
Numbers having period-30 6-digitized sequences.A031199
Numbers having period-30 6-digitized sequences.
Periods of sum of 7th powers of digits iterated until the sequence becomes periodic.A031200
Periods of sum of 7th powers of digits iterated until the sequence becomes periodic.
Numbers having period-1 7-digitized sequences.A031201
Numbers having period-1 7-digitized sequences.
Numbers having period-2 7-digitized sequences.A031202
Numbers having period-2 7-digitized sequences.
Numbers having period-3 7-digitized sequences.A031203
Numbers having period-3 7-digitized sequences.
Numbers having period-12 7-digitized sequences.A031204
Numbers having period-12 7-digitized sequences.
Numbers having period-14 7-digitized sequences.A031205
Numbers having period-14 7-digitized sequences.
Numbers having period-21 7-digitized sequences.A031206
Numbers having period-21 7-digitized sequences.
Numbers having period-27 7-digitized sequences.A031207
Numbers having period-27 7-digitized sequences.
Numbers having period-30 7-digitized sequences.A031208
Numbers having period-30 7-digitized sequences.
Numbers having period-56 7-digitized sequences.A031209
Numbers having period-56 7-digitized sequences.
Numbers having period-92 7-digitized sequences.A031210
Numbers having period-92 7-digitized sequences.