|
%I #4 Mar 14 2018 07:20:09
%S 64,1063,4297,34693,345713,3260568,33392871,350899542,3640767606,
%T 37969590958,396898355661,4145790945869,43325433803276,
%U 452863444729136,4733605414721563,49481042237838159,517248751223641209
%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 7 of A300881.
%H R. H. Hardin, <a href="/A300880/b300880.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..0..1..0..1..0. .0..1..1..1..0..1..0. .0..0..0..1..1..0..1
%e ..1..0..0..0..0..0..0. .0..1..1..0..1..1..1. .1..1..0..0..0..1..1
%e ..0..0..0..0..0..1..1. .0..1..1..1..1..0..0. .0..0..0..0..0..0..0
%e ..1..1..1..0..0..0..0. .1..0..1..1..0..1..1. .1..0..1..0..0..0..1
%e ..0..0..1..0..1..1..0. .0..1..1..1..0..0..0. .0..0..1..0..1..0..1
%Y Cf. A300881.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 14 2018
| 