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A154045 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 5. 0
252, 1304, 3408, 5277, 7873, 6195, 3852, 2331, 1803, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728, 1728, 1872, 1728, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728, 1728, 1872, 1728, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

Pattern 1728 1968 1728 1728 1872 1728 1728 1864 1728 1728 1872 1728 starts at n=12 and continues through at least n=55.

LINKS

Table of n, a(n) for n=3..44.

EXAMPLE

Maximal zeros solution for n=12

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

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

...........3.0.0

..........0.1.1.1

.........0.1.0.2.1

........1.1.2.0.0.1

.......2.1.0.0.3.0.0

......0.0.1.2.0.0.2.2

.....1.1.1.1.0.2.0.1.0

....0.2.1.0.1.1.1.1.0.1

...2.0.0.1.2.0.1.0.2.1.1

..2.0.1.2.0.0.2.1.0.1.1.0

CROSSREFS

Sequence in context: A275315 A184505 A184499 * A172223 A154073 A166783

Adjacent sequences:  A154042 A154043 A154044 * A154046 A154047 A154048

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2009

STATUS

approved

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Last modified September 27 04:33 EDT 2022. Contains 357052 sequences. (Running on oeis4.)