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A302875
Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
13, 113, 241, 1442, 7580, 45897, 320405, 2489823, 20679119, 181479109, 1638029668, 15055216000, 140041815820, 1311377207833, 12333793776935, 116324158971711, 1098943034315150, 10393405509745294, 98366682504010661, 931394618765660697
OFFSET
1,1
COMMENTS
Column 6 of A302877.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0..1. .0..1..1..0..1..1. .0..1..1..0..1..0. .0..0..0..1..1..1
..0..1..1..1..0..1. .1..0..1..0..0..0. .1..0..1..0..1..0. .0..1..0..1..0..1
..0..0..0..1..0..1. .1..0..1..0..1..0. .1..0..1..0..1..0. .0..1..0..1..0..1
..0..1..1..1..1..0. .1..0..1..0..1..1. .0..0..1..1..0..0. .1..1..0..1..0..1
..0..1..0..0..1..0. .1..0..1..0..1..0. .1..0..1..0..1..0. .0..1..0..1..0..1
CROSSREFS
Cf. A302877.
Sequence in context: A303038 A141937 A320464 * A303523 A244763 A320463
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 15 2018
STATUS
approved