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A301326 Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 10, 18, 45, 143, 414, 1481, 5062, 17879, 62112, 217402, 764860, 2687915, 9462966, 33320851, 117384939, 413427418, 1456413781, 5131048829, 18077067261, 63688856231, 224392218311, 790594491334, 2785479832548, 9814065517891 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A301330.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A301330.

Sequence in context: A007938 A007937 A300601 * A255603 A291931 A050576

Adjacent sequences:  A301323 A301324 A301325 * A301327 A301328 A301329

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 18 2018

STATUS

approved

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Last modified September 23 22:32 EDT 2020. Contains 337315 sequences. (Running on oeis4.)