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A203206 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,1,2,1,2,0,2 for x=0,1,2,3,4,5,6 0
1, 5, 20, 284, 4856, 206135, 16666149, 2387347463, 736521073609 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

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

........1..............0..............0..............0..............0

.......1.2............2.2............0.0............1.1............2.2

......3.2.2..........2.6.2..........0.5.0..........0.3.0..........2.6.2

.....1.1.4.1........0.2.2.1........2.2.0.0........2.2.1.1........0.2.2.1

....0.0.2.2.1......0.0.4.1.0......0.2.4.2.2......0.2.4.2.2......0.0.4.0.1

...0.5.2.6.2.3....0.5.2.2.3.1....1.0.1.2.6.2....0.5.0.2.6.2....0.5.2.2.3.0

..0.0.0.2.2.1.1..0.0.0.2.0.1.0..0.1.3.1.2.2.0..0.0.0.0.2.2.0..0.0.0.2.1.1.0

CROSSREFS

Sequence in context: A198021 A198037 A203213 * A032072 A002030 A213148

Adjacent sequences:  A203203 A203204 A203205 * A203207 A203208 A203209

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 30 2011

STATUS

approved

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Last modified December 11 07:18 EST 2019. Contains 329914 sequences. (Running on oeis4.)