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A316644 Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1
2, 10, 33, 42, 277, 954, 2432, 10541, 39013, 126666, 482131, 1792255, 6319249, 23345602, 86360870, 313149450, 1150902364, 4244463411, 15539179620, 57111294927, 210353855214, 772739674178, 2841929193001, 10462902967671 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A316648.

LINKS

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

R. H. Hardin, Empirical recurrence of order 69

FORMULA

Empirical recurrence of order 69 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316648.

Sequence in context: A004028 A263839 A236921 * A080668 A062453 A036369

Adjacent sequences:  A316641 A316642 A316643 * A316645 A316646 A316647

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 09 2018

STATUS

approved

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Last modified October 20 22:44 EDT 2019. Contains 328291 sequences. (Running on oeis4.)