A300921 - OEIS

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A300921

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

1, 113, 1245, 30474, 640673, 14914968, 340365586, 7878577344, 181974865532, 4211913531378, 97445857016077, 2255166226115116, 52187511273194950, 1207741145471507139, 27949696919643128895, 646819606382316382862

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

OFFSET

1,2

COMMENTS

Column 6 of A300923.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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