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A304008
Number of nX6 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
1
1, 49, 53, 115, 271, 538, 1458, 2973, 7826, 19113, 47074, 115148, 283156, 698411, 1720946, 4258788, 10518418, 26019796, 64391560, 159345205, 394533973, 976872015, 2419079852, 5991435758, 14839400772, 36760610050, 91064615465
OFFSET
1,2
COMMENTS
Column 6 of A304010.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..1. .0..1..1..1..0..1. .0..1..0..1..0..1. .0..0..0..0..1..0
..1..1..1..0..1..0. .1..0..0..1..0..0. .0..1..1..1..0..0. .1..1..0..1..1..0
..0..1..1..1..1..0. .1..1..0..0..1..1. .0..0..1..1..1..0. .1..0..1..0..0..1
..0..0..1..1..0..0. .0..0..1..0..0..1. .0..1..1..0..1..0. .0..0..1..0..1..1
..1..0..1..1..0..1. .1..0..1..1..1..0. .1..0..0..0..0..1. .1..0..1..1..0..0
CROSSREFS
Cf. A304010.
Sequence in context: A346805 A118073 A043300 * A305358 A140388 A044863
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 04 2018
STATUS
approved