24587
domain: N
Appears in sequences
- Numerators of continued fraction convergents to sqrt(705).at n=6A042356
- Number of subgroups of the group GL(2,Z_n) of invertible 2 X 2 matrices mod n (sequence A000252).at n=7A066514
- a(0) = 19; for n>0, successively subtract 5, subtract 3 and double.at n=40A106706
- a(n) = n*(4*n^2 + n - 1)/2.at n=22A125200
- Absolute differences of A129198.at n=27A129199
- Members of A038512 of the form k, k+2, k+6, k+8.at n=38A155511
- a(n) = ((1+4*sqrt(2))*(3+sqrt(2))^n + (1-4*sqrt(2))*(3-sqrt(2))^n)/2.at n=6A164299
- Number of (2+2) X (n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=30A252721
- Numbers n = p * q, where n, p, and q together contain all 10 digits at least once.at n=11A253172
- Number of nX3 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.at n=3A273966
- Number of nX4 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.at n=2A273967
- T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.at n=17A273968
- T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.at n=18A273968
- Remainder when sum of squares of the first n primes is divided by n-th square pyramidal number.at n=53A282282
- Number of n X 2 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.at n=14A304004
- Nonnegative integers k such that the sum of the first k primes is a pentagonal number.at n=3A364696