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, 34, 4928, 1827866, 7517844304, 139311706980478, 11310637537927864312, 5793518308454166613597206, 16499383957270648398027512271016, 232881358372974921721264513246410927230

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