A317700 - OEIS

A317700

Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 82, 851, 20235, 468002, 11013057, 261020405, 6206695998, 147728990014, 3517979870158, 83793302100665, 1995995263130736, 47547157897887346, 1132650102102214367, 26981709208286690846, 642753107156924487864

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OFFSET

1,2

COMMENTS

Column 5 of A317703.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 87

FORMULA

Empirical recurrence of order 87 (see link above)

EXAMPLE

Some solutions for n=5

..0..0..0..0..1. .0..0..0..0..1. .0..1..0..1..0. .0..1..0..1..0

..1..1..1..0..0. .1..1..1..0..1. .0..1..0..0..1. .1..0..0..1..0

..0..1..1..1..0. .0..0..0..0..1. .0..1..0..1..0. .1..1..0..0..0

..1..0..0..1..0. .1..0..1..1..0. .0..1..0..0..1. .0..1..1..1..1

..1..0..1..0..1. .0..1..0..1..0. .0..1..0..0..1. .0..1..0..1..0

CROSSREFS

Cf. A317703.

Sequence in context: A317062 A230394 A316929 * A173356 A083386 A356536

Adjacent sequences: A317697 A317698 A317699 * A317701 A317702 A317703

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 04 2018

STATUS

approved