A231282 Number of nX5 0..3 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

0, 26, 834, 34786, 1400418, 56442770, 2276141330, 91775666754, 3700571551586, 149213472628178, 6016549721672594, 242597862382597186, 9781972242076667682, 394426316608265830162, 15903962436973259441298, 641275722714326667891138

Offset

1,2

Comments

Column 5 of A231285

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 30*a(n-1) +422*a(n-2) +112*a(n-3) -13713*a(n-4) -12558*a(n-5) +109956*a(n-6) -205672*a(n-7) +110336*a(n-8) +3309440*a(n-9) -849920*a(n-10) for n>11

Example

Some solutions for n=3
..0..1..2..3..0....0..1..2..0..1....0..1..2..3..2....0..1..2..3..0
..0..1..2..1..2....0..3..0..2..3....0..1..0..2..1....1..2..3..1..0
..0..1..0..3..2....2..1..1..0..3....0..3..3..0..3....1..0..2..3..2

Crossrefs

Sequence in context: A091742 A160140 A139670 * A357140 A333117 A263945

Adjacent sequences: A231279 A231280 A231281 * A231283 A231284 A231285

Keyword

nonn

Author

R. H. Hardin, Nov 06 2013

Status

approved