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A197924 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,4,0,2,1,2,0 for x=0,1,2,3,4,5,6 0
1, 4, 12, 56, 413, 5592, 118914, 4075124, 230222994 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 4'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 2'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..............1..............1..............0

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

......0.6.0..........2.2.2..........1.1.0..........1.1.0..........2.2.2

.....2.0.0.0........0.5.2.0........2.3.2.0........2.3.2.0........0.2.5.0

....1.3.2.2.2......0.2.2.0.0......0.0.2.5.2......0.0.2.5.2......0.0.2.2.0

...4.1.2.5.2.0....1.1.3.0.6.0....0.6.0.2.2.0....0.6.0.2.2.0....0.6.0.3.1.1

..1.1.0.0.2.0.2..1.4.1.2.0.0.0..2.0.0.0.2.0.0..0.0.0.0.2.0.2..0.0.0.2.1.4.1

CROSSREFS

Sequence in context: A019266 A009114 A144012 * A065125 A208940 A209068

Adjacent sequences:  A197921 A197922 A197923 * A197925 A197926 A197927

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 19 2011

STATUS

approved

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Last modified December 3 18:19 EST 2021. Contains 349467 sequences. (Running on oeis4.)