A295605 - OEIS

%I #4 Nov 24 2017 07:24:41

%S 34,883,26249,892086,34416318,1412108105,59768294027,2568256527624,

%T 111128604535696,4823594242340185,209666812700819997,

%U 9119400828820574160,396760256446506930379,17264203925782434554401,751260433475452367409937

%N Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2, 3 or 4 1s.

%C Column 7 of A295606.

%H R. H. Hardin, <a href="/A295605/b295605.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A295606.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 24 2017