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A304016
Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
1
3, 120, 281, 1318, 5162, 20979, 87747, 363807, 1503951, 6293212, 26205966, 109324860, 456564651, 1906061826, 7958703070, 33240668699, 138822265649, 579797632188, 2421619456162, 10114301541455, 42244329291518
OFFSET
1,1
COMMENTS
Column 5 of A304019.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0. .0..1..1..0..1. .0..1..0..0..1. .0..1..0..1..0
..1..1..0..0..1. .0..1..1..0..0. .1..1..1..0..0. .0..0..0..0..0
..1..0..1..1..1. .1..0..1..1..0. .1..1..1..1..1. .1..1..0..0..1
..0..0..1..0..1. .1..0..0..0..1. .0..0..1..1..0. .0..1..1..0..0
..1..1..0..0..0. .1..0..1..0..1. .1..0..0..1..1. .1..1..0..0..1
CROSSREFS
Cf. A304019.
Sequence in context: A159522 A103743 A375935 * A305364 A304956 A316638
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 04 2018
STATUS
approved