57256

Appears in sequences

• Structured triakis tetrahedral numbers (vertex structure 4).at n=33A100175
• a(n) = (15*n^4 + 22*n^3 + 45*n^2 + 14*n) / 24.at n=17A101166
• Partial sums of the first 10^n terms in A181482.at n=1A222739
• Triangle read by rows: T(n,k) = number of partial idempotent mappings (of an n-chain) with (right) waist exactly k.at n=44A258579
• Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011.at n=10A259718
• Expansion of Product_{i>=1, j>=1} (1 + i*x^(i*j)).at n=19A333653
• Expansion of e.g.f. exp(x * (2 + exp(x))).at n=7A367874