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A305357 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. 1
1, 26, 27, 64, 137, 271, 656, 1414, 3251, 7823, 17334, 40796, 93604, 216821, 501777, 1167670, 2698662, 6270487, 14570871, 33832392, 78619380, 182859215, 425198247, 989053517, 2302010385, 5357492695, 12472512027, 29043019534, 67636886076 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A305360.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0. .0..1..0..0..1. .0..0..1..1..1. .0..0..0..0..0
..1..0..1..0..0. .1..1..1..0..1. .0..0..1..1..1. .0..0..0..0..0
..0..1..0..0..0. .0..1..1..1..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..0..0. .0..0..1..0..1. .1..1..0..0..0. .1..1..1..1..1
..1..1..1..0..0. .1..1..0..1..0. .1..1..0..0..0. .1..1..1..1..1
CROSSREFS
Cf. A305360.
Sequence in context: A042354 A042352 A304007 * A042374 A042376 A042372
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 31 2018
STATUS
approved

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)