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A302667
Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
3, 146, 760, 6110, 42367, 316977, 2320879, 17037458, 125456575, 920577056, 6771994976, 49750520267, 365694010435, 2687564829667, 19752736970617, 145173898526499, 1066965083553746, 7841771608569736, 57633622628200420
OFFSET
1,1
COMMENTS
Column 5 of A302670.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..0. .0..1..1..1..1. .0..1..1..1..1. .0..0..1..1..0
..1..0..0..0..0. .0..0..0..1..0. .1..0..0..0..1. .0..1..1..0..0
..0..0..1..1..1. .1..1..1..0..0. .1..1..1..1..0. .0..0..1..1..0
..1..0..1..0..0. .0..0..1..0..1. .0..0..0..0..1. .1..0..0..0..1
..1..1..0..0..0. .0..0..0..1..0. .0..0..1..1..0. .1..1..1..1..1
CROSSREFS
Cf. A302670.
Sequence in context: A042135 A326803 A302221 * A302469 A303251 A203759
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 11 2018
STATUS
approved