A300932 - OEIS

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A300932

Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 7, 52, 505, 6220, 97745, 2038646, 57179007, 2175995920, 112292412019

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

OFFSET

1,2

COMMENTS

Diagonal of A300937.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=5

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

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