A300805 - OEIS

A300805

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

%I #6 Aug 20 2020 11:39:26

%S 1,8,170,9504,1415898,559634028,585611214958,1623186113355468,

%T 11918444465082418938,231853794250990035322072

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

%C Diagonal of A300811.

%e Some solutions for n=5

%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

%e ..1..1..1..0..1. .0..1..1..0..1. .1..0..1..1..0. .0..1..1..1..0

%e ..1..0..1..0..1. .0..0..1..0..0. .0..1..0..1..1. .1..0..0..0..1

%e ..0..0..0..1..0. .1..0..1..1..1. .0..0..0..1..0. .0..1..0..1..0

%e ..1..1..1..1..0. .0..0..1..0..0. .0..0..1..0..1. .1..1..0..0..1

%Y Cf. A300811.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 13 2018