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A302531 Number of 5Xn 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
0, 61, 497, 902, 3683, 23909, 128242, 465323, 1918153, 10153650, 48825739, 206962001, 913773720, 4366054069, 20367538805, 90798363146, 409867362675, 1900191504221, 8749921654714, 39674026618581, 180520404483627 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A302528.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302528.

Sequence in context: A264845 A142034 A167445 * A061002 A303412 A209548

Adjacent sequences:  A302528 A302529 A302530 * A302532 A302533 A302534

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 09 2018

STATUS

approved

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Last modified March 18 19:58 EDT 2019. Contains 321293 sequences. (Running on oeis4.)