A277787 Number of nX7 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.

0, 18930, 4604554, 5841628899, 4917756016412, 4515609963711003, 4064896184452097744, 3677191006496347808276, 3322023493506438374911424, 3002319024317622656410038946, 2713074413212233626315688367138

Offset

1,2

Comments

Column 7 of A277788.

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

Example

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

Crossrefs

Cf. A277788.

Sequence in context: A224573 A342080 A251015 * A252885 A232576 A339962

Adjacent sequences: A277784 A277785 A277786 * A277788 A277789 A277790

Keyword

nonn

Author

R. H. Hardin, Oct 31 2016

Status

approved