A154085 Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 5 X 5 X 5 subtriangle summing to 12.

70, 480, 2928, 2735, 3045, 14039, 12442, 4685, 25484, 7105, 3050

Offset

5,1

Links

Table of n, a(n) for n=5..15.

Crossrefs

Sequence in context: A172222 A157369 A163434 * A220365 A007330 A060541

Adjacent sequences: A154082 A154083 A154084 * A154086 A154087 A154088

Keyword

nonn

Author

R. H. Hardin Jan 04 2009

Status

approved