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A303196
Number of n X 7 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
21, 185, 233, 687, 7425, 34801, 164295, 1053249, 5803057, 30459340, 175958088, 988572609, 5409436965, 30475463803, 171059829077, 949886716408, 5320086247758, 29806428448927, 166317770692219, 930326534497792
OFFSET
1,1
COMMENTS
Column 7 of A303197.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1..0..1. .0..1..1..0..1..0..1. .0..1..0..0..1..0..1
..0..1..1..0..1..0..1. .1..0..1..0..1..1..1. .0..1..1..1..1..0..1
..1..1..1..1..1..1..1. .1..0..1..0..1..0..0. .0..1..0..1..0..1..1
..1..1..1..1..1..0..1. .1..0..0..1..1..1..1. .0..1..0..0..1..0..1
..0..1..1..0..0..0..1. .1..1..1..1..1..0..1. .0..1..1..1..1..0..1
CROSSREFS
Cf. A303197.
Sequence in context: A302162 A302634 A302426 * A274655 A274653 A376902
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 19 2018
STATUS
approved