A298772 - OEIS

A298772

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

3, 23, 47, 233, 682, 2603, 11657, 39908, 149791, 617528, 2340328, 8921969, 34929827, 135499003, 522693251, 2023538485, 7856615385, 30426642588, 117738552981, 456437251086, 1768840207859, 6850066781045, 26539738521878, 102838505746523

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OFFSET

1,1

COMMENTS

Column 5 of A298775.

LINKS

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

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

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

CROSSREFS

Cf. A298775.

Sequence in context: A146592 A107169 A297956 * A298579 A299571 A032003

Adjacent sequences: A298769 A298770 A298771 * A298773 A298774 A298775

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2018

STATUS

approved