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A232900 Number of (n+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally 0
0, 34, 4928, 1827866, 7517844304, 139311706980478, 11310637537927864312, 5793518308454166613597206, 16499383957270648398027512271016, 232881358372974921721264513246410927230 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A232908

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A129056 A212034 A297072 * A209943 A187708 A231084

Adjacent sequences:  A232897 A232898 A232899 * A232901 A232902 A232903

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2013

STATUS

approved

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Last modified April 9 17:48 EDT 2020. Contains 333361 sequences. (Running on oeis4.)