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A154088 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 13. 0
0, 632, 4434, 0, 5545, 25834, 0, 14701, 52378, 0, 10551 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

LINKS

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

CROSSREFS

Sequence in context: A345811 A186898 A006913 * A321639 A185483 A074762

Adjacent sequences:  A154085 A154086 A154087 * A154089 A154090 A154091

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2009

STATUS

approved

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Last modified September 20 21:48 EDT 2021. Contains 347591 sequences. (Running on oeis4.)