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A198055 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,0,1,0,0,1 for x=0,1,2,3,4,5,6 0
1, 7, 24, 201, 2473, 49462, 1645915, 91920138, 8607887484, 1360576772241 (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 0'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 1's

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

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

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

.......0.0............0.0............0.0............0.0............0.1

......0.5.0..........0.4.0..........0.4.0..........0.4.0..........1.1.3

.....2.2.0.2........2.1.1.1........1.1.1.2........1.1.1.2........1.6.1.2

....0.1.1.1.3......0.2.1.6.1......1.6.1.2.0......1.6.1.2.0......0.1.1.0.0

...0.4.1.6.1.1....0.5.0.1.1.0....0.1.1.0.5.0....0.1.1.0.5.0....0.4.1.2.5.0

..2.0.0.1.1.0.1..0.0.0.2.3.1.1..1.1.3.2.0.0.0..1.1.3.2.0.0.2..0.0.0.2.0.0.0

CROSSREFS

Sequence in context: A293489 A009650 A111753 * A012761 A209483 A209342

Adjacent sequences:  A198052 A198053 A198054 * A198056 A198057 A198058

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 20 2011

STATUS

approved

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Last modified September 16 21:28 EDT 2021. Contains 347473 sequences. (Running on oeis4.)