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A302327
Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
32, 857, 4321, 19734, 110035, 708572, 4521584, 27478634, 165976429, 1025078824, 6409215778, 39928560855, 247686993864, 1538752202127, 9592791182446, 59886297789724, 373803919233981, 2333455078036120, 14577232595716204
OFFSET
1,1
COMMENTS
Row 6 of A302322.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0. .0..0..0..0..1. .0..0..1..0..0. .0..0..0..1..0
..0..1..1..0..1. .1..0..1..0..1. .1..0..1..1..1. .1..1..1..0..1
..0..1..0..1..0. .1..0..1..1..1. .1..0..1..0..0. .1..0..1..0..1
..0..1..0..1..0. .1..1..0..0..0. .0..0..0..0..1. .0..0..1..0..1
..1..0..0..1..0. .0..0..1..0..1. .1..1..1..1..1. .0..1..1..0..0
..1..1..0..1..0. .1..0..1..0..1. .1..0..1..0..0. .1..0..1..1..0
CROSSREFS
Cf. A302322.
Sequence in context: A302627 A302419 A303186 * A303020 A302824 A303517
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 05 2018
STATUS
approved