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A295273 Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s. 1

%I

%S 44,865,19997,449827,10203847,230659662,5221177246,118139247475,

%T 2673342943199,60493860184777,1368887903616187,30975935104352291,

%U 700940389558441876,15861259863124103232,358917220084448007191

%N Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.

%C Column 6 of A295275.

%H R. H. Hardin, <a href="/A295273/b295273.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A295273/a295273.txt">Empirical recurrence of order 78</a>

%F Empirical recurrence of order 78 (see link above)

%e Some solutions for n=3

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

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

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

%Y Cf. A295275.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 19 2017

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Last modified September 16 11:12 EDT 2021. Contains 347472 sequences. (Running on oeis4.)