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A302875 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
13, 113, 241, 1442, 7580, 45897, 320405, 2489823, 20679119, 181479109, 1638029668, 15055216000, 140041815820, 1311377207833, 12333793776935, 116324158971711, 1098943034315150, 10393405509745294, 98366682504010661, 931394618765660697 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A302877.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302877.

Sequence in context: A303038 A141937 A320464 * A303523 A244763 A320463

Adjacent sequences:  A302872 A302873 A302874 * A302876 A302877 A302878

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 15 2018

STATUS

approved

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Last modified January 29 07:03 EST 2020. Contains 331337 sequences. (Running on oeis4.)