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A198089 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,3,2,1,1,0,0 for x=0,1,2,3,4,5,6 0
1, 2, 5, 33, 228, 3088, 57920, 1692421, 89966033, 7774886220 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 1's, every 5 is next to 5 0's, every 6 is next to 6 0's

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions with all values from 0 to 6 for 7X7X7

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

.......1.1............0.0............2.2............0.0............0.0

......3.4.3..........0.6.0..........0.2.0..........0.6.0..........1.0.0

.....1.1.1.1........1.0.0.0........0.5.0.1........0.0.0.1........3.1.5.0

....0.0.0.0.0......3.1.0.5.0......0.0.0.1.3......0.5.0.1.3......1.4.0.0.0

...2.2.5.0.6.0....1.4.1.0.2.0....0.6.0.1.4.1....0.2.0.1.4.1....2.1.1.0.6.0

..0.2.0.0.0.0.0..0.1.3.1.2.2.0..0.0.0.1.3.1.0..0.2.2.1.3.1.0..2.2.3.1.0.0.0

CROSSREFS

Sequence in context: A224231 A019037 A019038 * A197974 A208985 A333738

Adjacent sequences:  A198086 A198087 A198088 * A198090 A198091 A198092

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2011

STATUS

approved

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Last modified January 21 07:24 EST 2021. Contains 340335 sequences. (Running on oeis4.)