A316308 - OEIS

A316308

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

8, 35, 44, 148, 662, 1488, 4583, 18558, 56204, 188141, 712440, 2484751, 8876668, 33095129, 121297567, 447423229, 1671814264, 6233495046, 23296217374, 87393702987, 327949195408, 1231914905680, 4633026322458, 17430755528167

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OFFSET

1,1

COMMENTS

Column 5 of A316311.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316311.

Sequence in context: A316549 A304541 A306126 * A317263 A275360 A281147

Adjacent sequences: A316305 A316306 A316307 * A316309 A316310 A316311

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 29 2018

STATUS

approved