A298927 - OEIS

A298927

Number of nX5 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

0, 11, 3, 23, 94, 255, 666, 2720, 8571, 30093, 106192, 369318, 1291934, 4552705, 15952349, 56078262, 197277132, 693611434, 2438933680, 8579643205, 30173988847, 106130105150, 373307026724, 1313049614295, 4618497134678, 16245278266932

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OFFSET

1,2

COMMENTS

Column 5 of A298930.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A298930.

Sequence in context: A107598 A087100 A298256 * A102380 A204845 A260597

Adjacent sequences: A298924 A298925 A298926 * A298928 A298929 A298930

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 29 2018

STATUS

approved