A154069 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 8.

24310, 342574, 2116436, 6822273, 15442812, 33906557

Offset

4,1

Links

Table of n, a(n) for n=4..9.

Crossrefs

Sequence in context: A253465 A251154 A078870 * A318630 A194721 A140923

Adjacent sequences: A154066 A154067 A154068 * A154070 A154071 A154072

Keyword

nonn

Author

R. H. Hardin Jan 04 2009

Status

approved