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A203210 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,4,1,1,1,0,0 for x=0,1,2,3,4,5,6 0
1, 1, 7, 44, 126, 6810, 289788, 7104040, 1498118546, 369128120568 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

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

........2..............1..............0..............2..............0

.......1.1............1.4............1.1............1.1............0.0

......1.4.1..........0.1.1..........1.4.0..........1.4.1..........0.0.0

.....3.0.0.0........0.0.0.3........3.1.0.0........0.0.0.3........0.0.6.0

....1.1.5.0.0......0.0.5.1.1......1.0.5.0.0......0.0.5.1.1......0.5.0.0.0

...1.4.0.0.6.0....0.6.0.0.4.1....1.4.0.0.6.0....0.6.0.0.4.1....1.1.0.1.4.1

..0.0.1.0.0.0.0..0.0.0.0.0.1.2..2.1.1.0.0.0.0..0.0.0.0.1.0.0..1.4.1.3.1.1.2

CROSSREFS

Sequence in context: A048605 A165210 A162454 * A323923 A026116 A216237

Adjacent sequences:  A203207 A203208 A203209 * A203211 A203212 A203213

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 30 2011

STATUS

approved

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Last modified October 26 08:00 EDT 2021. Contains 348267 sequences. (Running on oeis4.)