A203379 - OEIS

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A203379

Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,4,0,2,1,0,0 for x=0,1,2,3,4,5,6

1, 4, 12, 86, 1385, 26083, 1411032, 135514315, 17976608084, 5645718373339

(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 4's, every 2 is next to 2 0's, every 3 is next to 3 2'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

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

.......4.1............4.1............0.0............0.0............0.0

......1.1.0..........1.1.2..........0.0.2..........0.6.0..........0.6.0

.....3.2.0.0........3.2.0.0........0.5.2.3........0.0.0.2........0.0.0.0

....2.2.0.0.0......2.2.0.6.0......0.0.0.2.1......0.5.0.2.3......0.0.0.5.0

...0.0.5.0.6.0....0.0.5.0.0.0....0.6.0.0.4.1....0.0.1.4.1.2....1.1.2.2.0.0

..0.0.0.0.0.0.0..2.0.0.0.0.0.0..0.0.0.0.1.1.0..0.0.2.1.1.0.0..1.4.1.3.2.0.2

CROSSREFS

Sequence in context: A331087 A194004 A064280 * A209031 A096424 A009629

Adjacent sequences: A203376 A203377 A203378 * A203380 A203381 A203382

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 31 2011

STATUS

approved