A304424 - OEIS

%I #4 May 12 2018 09:37:07

%S 3,383,5227,98190,1712347,30362267,536823135,9501018264,168137854364,

%T 2975798466045,52667917505864,932167979824643,16498484378035160,

%U 292008101571549769,5168281649176848170,91473995207640848424

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

%C Column 5 of A304427.

%H R. H. Hardin, <a href="/A304424/b304424.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A304424/a304424.txt">Empirical recurrence of order 90</a>

%F Empirical recurrence of order 90 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304427.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 12 2018