A302155 - OEIS

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A302155

Number of 7 X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

64, 1, 260, 1025, 8152, 128319, 1728734, 26544210, 439103633, 7478635467, 131386907715, 2344378104516, 42235221450124, 765312882037454, 13907043370373429, 253045503157946243, 4606517701125024786

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

OFFSET

1,1

COMMENTS

Row 7 of A302150.

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

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

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

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

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

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

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

CROSSREFS

Cf. A302150.

Sequence in context: A174927 A303329 A301911 * A351246 A371277 A288923

Adjacent sequences: A302152 A302153 A302154 * A302156 A302157 A302158

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 02 2018

STATUS

approved