24935
domain: N
Appears in sequences
- Number of filaments with n square cells.at n=15A002013
- Semiprimes in A056108.at n=28A113527
- The (1,3)-entry in the 3 X 3 matrix M^n, where M = [1,1,1 / 4,2,1 / 9,3,1].at n=6A122883
- Interlaced merger of A122883, A122884 and A122885.at n=21A122886
- G.f. satisfies: A(x) = Sum_{n>=0} x^(n(n+1)/2) * (A(x) + x)^n.at n=14A177487
- Numbers n with property that (n+1)*prime(n+1)-n*prime(n) is a perfect square s^2.at n=36A181283
- Number of dispersed Dyck paths of length n (i.e., Motzkin paths of length n with no (1,0) steps at positive heights) with no valleys at level 0.at n=19A191388
- Total number of congruence subgroups of PSL(2,Z) of genus n.at n=18A258691
- Numbers X such that X^2 + Y^2 = 2^(2*k) + 1 and X > Y > 0 and k is the binary digit length of X-1.at n=44A369703