|
%I #4 Apr 04 2018 12:50:01
%S 64,5135,96004,1984001,41994750,893462062,18964765818,402597400706,
%T 8547940665506,181527035285787,3854821615967821,81862339042940669,
%U 1738453613332468089,36918733850285685708,784027054636001040433
%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Column 7 of A302265.
%H R. H. Hardin, <a href="/A302264/b302264.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..1..1..0..1..1. .0..1..1..1..0..0..1. .0..0..1..0..0..1..1
%e ..0..0..1..1..0..1..0. .0..0..1..0..0..1..0. .0..0..1..0..0..1..0
%e ..0..0..1..0..0..1..0. .0..0..1..1..0..1..0. .0..0..1..1..0..1..1
%e ..0..0..1..1..0..1..0. .0..0..1..1..0..1..0. .0..0..1..1..0..1..1
%e ..0..1..1..0..0..1..0. .0..1..1..0..0..1..1. .0..1..1..0..0..1..1
%Y Cf. A302265.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 04 2018
| 