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A303099
Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
3, 161, 2913, 58160, 1138331, 22292709, 436394066, 8545589681, 167325743073, 3276397352974, 64154700406471, 1256205180765473, 24597599305382336, 481642558107218459, 9430983527094262675, 184666925800707714070
OFFSET
1,1
COMMENTS
Column 5 of A303102.
FORMULA
Empirical recurrence of order 90 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..1..0
..1..0..1..1..0. .0..1..1..0..0. .0..1..0..0..1. .0..1..1..0..0
..0..1..0..0..0. .1..1..1..1..1. .1..1..0..0..1. .0..0..1..1..0
..1..0..1..1..0. .1..0..0..0..1. .1..0..0..1..1. .1..1..0..0..0
..1..1..1..0..1. .0..0..0..1..0. .1..1..0..0..1. .1..0..1..0..0
CROSSREFS
Cf. A303102.
Sequence in context: A201429 A067322 A302378 * A302950 A173128 A377253
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2018
STATUS
approved