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A154090 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 14. 0
0, 877, 6567, 0, 8577, 46236, 0, 21094, 113156, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

LINKS

Table of n, a(n) for n=5..14.

EXAMPLE

Maximal zeros solution for n=12

.............0

............0.2

...........6.4.0

..........0.0.0.0

.........0.0.0.0.2

........0.0.0.0.4.2

.......2.0.0.2.4.0.0

......2.4.4.0.0.0.0.0

.....0.0.0.2.0.2.0.0.0

....0.0.0.0.0.4.0.0.0.6

...2.4.0.0.0.0.4.0.0.4.0

..0.0.6.0.0.0.2.2.0.0.2.0

CROSSREFS

Sequence in context: A346860 A320558 A270771 * A294057 A255947 A048791

Adjacent sequences:  A154087 A154088 A154089 * A154091 A154092 A154093

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2009

STATUS

approved

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Last modified September 19 17:19 EDT 2021. Contains 347564 sequences. (Running on oeis4.)