34814

Appears in sequences

• a(n) is the least number k that A074389(k) = n.at n=25A074390
• a(n) = n^3 - n^2 - n - 1.at n=33A083074
• a(n) equals the (n*(n+1)/2)-th partial sum of the self-convolution cube of A010054, which has the g.f.: Sum_{k>=0} x^(k*(k+1)/2).at n=40A109414
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (0, -1), (1, 1)}.at n=10A151270
• Number of 9 X 9 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.at n=4A156399
• Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 4.at n=8A156435
• The A161671(n)-th partial sum of A161671.at n=44A161778
• Numbers n such that the sum of the octagonal numbers N(n) and N(n+1) is equal to another octagonal number.at n=3A251895
• Numbers k such that (754*10^k - 7)/9 is prime.at n=22A294634
• Expansion of (1/x) * Series_Reversion( x*(1-x)^5/(1+x)^4 ).at n=4A365848
• Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=35A391864