A230523 Number of nX5 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

0, 4374, 627350, 110423366, 19885757988, 3550368078592, 634283945584134, 113331393339170666, 20248908527968033824, 3617875975370408606256, 646406974219120549256894, 115493709925996602462021262

Offset

1,2

Comments

Column 5 of A230526

Links

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

R. H. Hardin, Empirical recurrence of order 52

Formula

Empirical recurrence of order 52 (see link above)

Example

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

Crossrefs

Sequence in context: A163583 A203403 A206148 * A375622 A376924 A111345

Adjacent sequences: A230520 A230521 A230522 * A230524 A230525 A230526

Keyword

nonn

Author

R. H. Hardin, Oct 22 2013

Status

approved