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A197942 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,1,1,0,0,0 for x=0,1,2,3,4,5,6 0
1, 4, 13, 76, 892, 14242, 383578, 17508639, 1352973126 (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 0's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 0'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..9.

EXAMPLE

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

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

.......0.0............0.0............1.1............0.0............0.0

......0.5.0..........0.6.0..........2.1.3..........0.6.0..........0.5.0

.....4.0.2.1........0.0.0.0........0.0.2.1........0.0.0.0........0.0.2.1

....0.0.0.1.3......0.4.0.5.0......0.6.0.0.1......2.0.5.0.0......0.0.4.1.3

...0.6.0.4.2.1....0.2.1.2.0.0....0.0.0.5.2.1....1.1.2.0.4.0....0.6.0.0.1.2

..0.0.0.0.0.0.1..0.0.1.3.1.2.1..0.0.4.0.0.0.1..0.1.3.1.1.1.1..0.0.0.0.2.1.0

CROSSREFS

Sequence in context: A012150 A012261 A012075 * A337286 A140417 A301396

Adjacent sequences:  A197939 A197940 A197941 * A197943 A197944 A197945

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 19 2011

STATUS

approved

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Last modified January 26 15:18 EST 2022. Contains 350599 sequences. (Running on oeis4.)