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A317264
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
13, 61, 91, 440, 1964, 7477, 33695, 166051, 806730, 4131259, 21892531, 116959279, 630802076, 3442833706, 18885784717, 103830921115, 572652396281, 3164881433181, 17506564565665, 96915089142427, 536885951695389
OFFSET
1,1
COMMENTS
Column 6 of A317266.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..1..1. .0..0..0..0..0..0. .0..1..1..1..1..0. .0..0..0..0..1..1
..0..1..1..1..1..1. .1..0..0..0..1..0. .1..1..1..1..0..0. .0..0..1..0..1..0
..1..1..1..1..1..1. .1..0..1..0..1..1. .1..1..1..1..1..1. .1..0..1..0..0..0
..1..1..1..0..1..1. .0..1..0..0..0..0. .1..1..0..1..0..1. .1..0..0..0..0..0
..1..1..0..0..1..0. .1..1..0..1..1..0. .1..0..0..1..0..0. .0..0..0..0..0..0
CROSSREFS
Cf. A317266.
Sequence in context: A306127 A118711 A316309 * A028874 A087106 A142402
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 25 2018
STATUS
approved