

A230679


Number of 5Xn 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2x(i,j)


1



0, 2247, 251595, 28368687, 4022141121, 559929294657, 77282148036051, 10681855554910983, 1476794401334027865, 204155617303878631797, 28222820785777362856803, 3901584177313433415004191
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OFFSET

1,2


COMMENTS

Row 5 of A230675


LINKS

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


EXAMPLE

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


CROSSREFS

Sequence in context: A260608 A125522 A250938 * A236114 A184767 A250160
Adjacent sequences: A230676 A230677 A230678 * A230680 A230681 A230682


KEYWORD

nonn


AUTHOR

R. H. Hardin, Oct 27 2013


STATUS

approved



