A305773 - OEIS

A305773

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

16, 192, 1096, 7528, 51586, 362200, 2553685, 18030904, 127390570, 900455984, 6365696123, 45002980493, 318160918881, 2249356861803, 15902693060757, 112430335547115, 794871406576647, 5619663671186623, 39730477666373826

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OFFSET

1,1

COMMENTS

Column 5 of A305776.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305776.

Sequence in context: A304307 A316206 A302298 * A317122 A230832 A305590

Adjacent sequences: A305770 A305771 A305772 * A305774 A305775 A305776

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 10 2018

STATUS

approved