42313
domain: N
Appears in sequences
- Number of n X n binary arrays with all ones connected only in a 2X3 U in any orientation.at n=6A146054
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 2X3 U in any orientation.at n=15A146056
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (-1, 1, 0), (1, -1, -1), (1, 1, 1)}.at n=9A149524
- a(n) = (2*n^3 + 5*n^2 + 7*n)/2.at n=33A162264
- Number of (n+3) X 5 0..2 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.at n=4A186582
- Number of (n+3)X8 0..2 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=1A186585
- T(n,k)=Number of (n+3)X(k+3) 0..2 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=16A186589
- T(n,k)=Number of (n+3)X(k+3) 0..2 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=19A186589
- Number of 2Xn 0..1 arrays with row sums nondecreasing and column sums unimodal.at n=10A223626
- G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * (3^k + A(x^k)) * x^k/k ).at n=9A363543