A154092 Number of planar triangular n X n X n nonnegative integer grids symmetric both under 120 degree rotation and reflection with every similarly oriented 5 X 5 X 5 subtriangle summing to 14.

0, 57, 131, 0, 53, 116, 0, 24, 52, 0, 2, 15, 0, 0, 11, 0, 0, 7, 0, 0, 6, 0, 0, 4

Offset

5,2

Links

Table of n, a(n) for n=5..28.

Crossrefs

Sequence in context: A044625 A304841 A240759 * A118152 A020186 A063316

Adjacent sequences: A154089 A154090 A154091 * A154093 A154094 A154095

Keyword

nonn

Author

R. H. Hardin Jan 04 2009

Status

approved