A251257 - OEIS

%I #4 Dec 01 2014 07:35:38

%S 850,10108,69270,836546,6080510,71459218,539961360,6151714502,

%T 47962536500,531311887046,4253113770276,45982917729368,

%U 376446763366200,3985975267619006,33263747474025152,345977830407359282

%N Number of (n+1)X(7+1) 0..1 arrays with every 2X2 subblock having a single 1 or two 1s on the same edge

%C Column 7 of A251258

%H R. H. Hardin, <a href="/A251257/b251257.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251257/a251257.txt">Empirical recurrence of order 49</a>

%F Empirical recurrence of order 49 (see link above)

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 01 2014