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A303459
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
16, 512, 12408, 306767, 7626768, 189848373, 4729712941, 117851999934, 2936875623336, 73188908936110, 1823941673502397, 45454643346741044, 1132781991907637247, 28230245358586758157, 703530728472049344422
OFFSET
1,1
COMMENTS
Row 5 of A303456.
FORMULA
Empirical recurrence of order 68 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..1..0. .0..0..1..1..0. .0..0..1..0..0. .0..0..1..0..0
..0..1..1..0..0. .1..0..1..1..0. .0..1..1..0..0. .0..1..1..0..0
..1..0..0..1..1. .0..1..0..0..0. .0..1..1..1..0. .1..0..1..1..0
..1..1..1..1..1. .0..0..0..1..1. .0..0..0..0..1. .1..0..0..0..1
CROSSREFS
Cf. A303456.
Sequence in context: A300801 A268147 A303453 * A301440 A302012 A302007
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 24 2018
STATUS
approved