29198
domain: N
Appears in sequences
- a(n) = (1/24)*(n+1)*(n+3)*(n^2+22*n+88).at n=24A090950
- 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, 1), (-1, 1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.at n=8A150418
- G.f.: q-cosh(x,q)^2 - q-sinh(x,q)^2 at q=-x.at n=22A198200
- Number of n X 2 0..4 arrays of sums of 2 X 2 subblocks of some (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=10A226988
- Number of integer-sided hexagons having perimeter n, modulo rotations but not reflections.at n=27A293823