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A281952
Number of nX5 0..1 arrays with no element unequal to more than four of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
1
16, 420, 2559, 19089, 130416, 944967, 6763599, 48984359, 354789627, 2573699813, 18697314731, 135843108316, 987512556916, 7179552344248, 52204658624294, 379626889263202, 2760696720563224, 20076810583748426, 146007910007427435
OFFSET
1,1
COMMENTS
Column 5 of A281955.
FORMULA
Empirical recurrence of order 69 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..1..1..0. .0..0..0..1..0. .0..0..0..1..0. .0..0..1..0..1
..0..1..1..0..0. .1..1..1..1..0. .0..1..1..1..0. .1..1..0..0..0
..0..1..1..0..0. .1..1..1..1..1. .1..1..1..1..1. .1..1..0..0..1
..1..0..1..0..1. .0..0..1..0..0. .0..1..0..0..1. .1..0..0..0..1
CROSSREFS
Cf. A281955.
Sequence in context: A239645 A349966 A143039 * A316180 A305766 A317115
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 03 2017
STATUS
approved