A278013 Number of nX7 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

0, 31808, 23376048, 25289030636, 25411730935962, 25821185682305524, 26189441962786135952, 26570542390954444938330, 26955958647713837678415162, 27347162598888601529381736910, 27744012208691795925340321755540

Offset

1,2

Comments

Column 7 of A278014.

Links

R. H. Hardin, Table of n, a(n) for n = 1..47

Example

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

Crossrefs

Cf. A278014.

Sequence in context: A252034 A284519 A183704 * A140939 A237165 A134124

Adjacent sequences: A278010 A278011 A278012 * A278014 A278015 A278016

Keyword

nonn

Author

R. H. Hardin, Nov 08 2016

Status

approved