login
Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Mar 19 2018 09:55:25

%S 3,37,92,320,1356,6279,30236,147448,713700,3458964,16761831,81068326,

%T 392498699,1903748357,9242300405,44898738589,218193853807,

%U 1060541170373,5155515413236,25063708598082,121851746401110,592419495632651

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A301361.

%H R. H. Hardin, <a href="/A301358/b301358.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301361.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 19 2018