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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. 0
70, 480, 2928, 2735, 3045, 14039, 12442, 4685, 25484, 7105, 3050 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 17 13:33 EST 2019. Contains 329230 sequences. (Running on oeis4.)