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A297698
Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
1
32, 120, 1801, 10647, 118791, 858645, 8377550, 66530487, 609364234, 5059995952, 44971320657, 381429636069, 3341632910246, 28629690153139, 249103320934175, 2144478674778949, 18597757367754151, 160470534661696174
OFFSET
1,1
COMMENTS
Row 5 of A297694.
FORMULA
Empirical recurrence of order 60 (see link above)
EXAMPLE
Some solutions for n=5
..1..0..1..0..0. .0..1..0..0..1. .0..0..0..0..0. .1..0..1..0..0
..1..0..1..0..0. .0..0..0..0..0. .1..0..0..1..0. .0..0..0..0..1
..1..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1
..1..0..1..0..1. .1..0..0..1..0. .1..0..0..0..0. .1..1..1..0..0
..1..0..0..0..1. .0..0..1..1..1. .0..0..0..1..0. .1..1..1..0..0
CROSSREFS
Cf. A297694.
Sequence in context: A234443 A234436 A297461 * A223314 A203965 A203958
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2018
STATUS
approved