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A296112
Number of n X 5 0..1 arrays with each 1 adjacent to 3 or 4 king-move neighboring 1's.
1
1, 8, 26, 64, 503, 2800, 14057, 106920, 726414, 4754059, 34128075, 239110536, 1659205332, 11741639971, 82670906105, 580742887850, 4096686036016, 28868334349248, 203319450955099, 1433261257604415, 10101271316316501, 71182444679538708, 501710615195327515, 3536012447004641894
OFFSET
1,2
FORMULA
Empirical recurrence of order 89 (see link above).
EXAMPLE
Some solutions for n=7:
..0..0..1..1..0. .0..1..1..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..1..0. .1..1..0..1..0. .0..1..1..0..0. .1..1..0..1..0
..0..0..0..0..0. .1..0..0..1..1. .0..1..1..0..0. .1..1..1..1..1
..0..0..0..0..0. .1..0..0..1..1. .0..0..1..0..0. .0..0..0..0..1
..0..0..0..1..0. .1..1..0..0..0. .0..1..0..0..0. .1..1..0..0..1
..0..0..1..1..1. .1..1..0..0..0. .1..1..1..0..0. .1..1..0..1..1
..0..0..0..1..0. .0..0..0..0..0. .0..1..0..0..0. .0..0..1..1..0
CROSSREFS
Column 5 of A296115.
Sequence in context: A301647 A050471 A088024 * A051669 A207101 A027004
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 04 2017
STATUS
approved