A300928 - OEIS

A300928

Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

5, 450, 23404, 1155263, 57594572, 2875574552, 143498589629, 7160975085336, 357354070296570, 17833027051203085, 889920824531940198, 44409682947730021006, 2216174612863105824139, 110593672103195176997181

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

OFFSET

1,1

COMMENTS

Column 6 of A300930.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300930.

Sequence in context: A300544 A055305 A300971 * A221626 A332145 A144509

Adjacent sequences: A300925 A300926 A300927 * A300929 A300930 A300931

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 15 2018

STATUS

approved

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