A303186 - OEIS

%I #4 Apr 19 2018 13:28:23

%S 32,857,1938,5050,29124,218980,1064399,5463686,31140302,171614778,

%T 925440030,5066435983,27840038592,152230525027,832494089795,

%U 4559107237431,24960324143794,136607957829075,747776129893009

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

%C Row 6 of A303182.

%H R. H. Hardin, <a href="/A303186/b303186.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A303186/a303186.txt">Empirical recurrence of order 84</a>

%F Empirical recurrence of order 84 (see link above)

%e Some solutions for n=5

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

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

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

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

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

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

%Y Cf. A303182.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 19 2018