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A154053 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 5 X 5 X 5 subtriangle summing to 5. 0
11628, 79753, 235290, 356994, 326326, 194107, 148269, 45493, 15037, 5541, 2529, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,1
COMMENTS
Value 2511 starts at n=16 and continues through at least n=49.
LINKS
EXAMPLE
Maximal zeros solution for n=16
.................0
................0.0
...............0.0.2
..............0.2.0.0
.............1.0.0.0.0
............1.0.0.0.1.0
...........0.0.0.1.0.1.0
..........0.0.0.1.1.0.0.0
.........0.0.2.0.0.0.0.0.2
........0.2.0.0.0.0.0.2.0.0
.......1.0.0.0.0.1.1.0.0.0.0
......1.0.0.0.1.0.1.0.0.0.1.0
.....0.0.0.1.0.1.0.0.0.1.0.1.0
....0.0.0.1.1.0.0.0.0.1.1.0.0.0
...0.0.2.0.0.0.0.0.2.0.0.0.0.0.2
..0.2.0.0.0.0.0.2.0.0.0.0.0.2.0.0
CROSSREFS
Sequence in context: A049051 A250242 A231321 * A151600 A214804 A352330
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved

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Last modified March 1 08:46 EST 2024. Contains 370430 sequences. (Running on oeis4.)