A304016 - OEIS

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A304016

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

3, 120, 281, 1318, 5162, 20979, 87747, 363807, 1503951, 6293212, 26205966, 109324860, 456564651, 1906061826, 7958703070, 33240668699, 138822265649, 579797632188, 2421619456162, 10114301541455, 42244329291518

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 5 of A304019.

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

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

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

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

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

CROSSREFS

Cf. A304019.

Sequence in context: A159522 A103743 A375935 * A305364 A304956 A316638

Adjacent sequences: A304013 A304014 A304015 * A304017 A304018 A304019

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 04 2018

STATUS

approved