33366
domain: N
Appears in sequences
- Number of connected graphs with n nodes and ceiling(n(n-1)/4) edges.at n=7A001437
- Number of connected unlabeled graphs with n nodes and floor(n*(n-1)/4) edges.at n=8A054926
- Number of parts if 4^n is partitioned into parts of size 3^n as far as possible into parts of size 2^n as far as possible and into parts of size 1^n.at n=16A064630
- Numbers k such that the k-th triangular number contains only digits {1,5,6}.at n=31A119133
- Number of (n+4)X6 0..1 matrices with each 5X5 subblock idempotent.at n=16A224684
- Squarefree terms of A276655.at n=39A276756
- Numbers n with digits 3 and 6 only.at n=33A284633
- Numbers n for which A324108(n) = A324054(n-1) and which are neither prime powers nor of the form 2^i * p^j, where p is an odd prime, with either exponent i or j > 0.at n=16A324111
- G.f. satisfies A(x) = ( 1 + x / (1 - x*A(x)^3)^3 )^2.at n=6A371617