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A197925 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,2,1,1,1,0,0 for x=0,1,2,3,4,5,6 0
1, 4, 22, 156, 4277, 103671, 7433963, 912939580, 204689985054 (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 2'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..9.

EXAMPLE

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

........0..............2..............0..............0..............2

.......0.0............1.1............2.1............0.0............1.1

......0.6.0..........1.4.1..........1.4.1..........0.1.2..........3.4.1

.....0.0.0.0........1.2.2.3........3.1.2.0........0.5.0.1........1.1.2.0

....0.5.0.2.1......0.0.0.1.1......2.1.0.0.0......0.0.0.1.3......2.0.0.5.0

...1.0.1.1.4.1....0.6.0.5.0.2....1.0.5.0.6.0....0.6.0.2.4.1....1.0.6.0.0.1

..1.2.2.1.3.1.2..0.0.0.0.0.0.1..0.0.0.0.0.0.0..0.0.0.0.1.1.2..0.0.0.0.1.2.0

CROSSREFS

Sequence in context: A052772 A052650 A198053 * A112697 A327994 A113717

Adjacent sequences:  A197922 A197923 A197924 * A197926 A197927 A197928

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 19 2011

STATUS

approved

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Last modified January 18 03:02 EST 2022. Contains 350410 sequences. (Running on oeis4.)