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A240648 Number of nX7 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order 1

%I #4 Apr 09 2014 19:16:39

%S 8,21,149,526,4343,29481,227270,1748201,14230080,116070258,970291863,

%T 8167942037,69515482202,595126853497,5123195518181,44273991533826,

%U 383829145390407,3335510350046976,29039638981754848,253185283934243073

%N Number of nX7 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order

%C Column 7 of A240649

%H R. H. Hardin, <a href="/A240648/b240648.txt">Table of n, a(n) for n = 1..169</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 09 2014

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Last modified July 18 04:06 EDT 2024. Contains 374377 sequences. (Running on oeis4.)