cp's OEIS Frontend

A262921 Number of (7+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

%I A262921 #4 Oct 04 2015 10:16:59
%S A262921 37,145,5797,51769,2045269,33948145,1282949605,32134185721,
%T A262921 1167936430357,36073199081665,1296185238921637,44004551333065849,
%U A262921 1586887190270675029,56226197936849068945,2042436589392526147045,73857813970541521390201
%N A262921 Number of (7+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.
%C A262921 Row 7 of A262917.
%H A262921 R. H. Hardin, <a href="/A262921/b262921.txt">Table of n, a(n) for n = 1..104</a>
%e A262921 Some solutions for n=4
%e A262921 ..0..0..0..1..1....0..0..0..0..0....0..1..1..0..0....1..1..0..0..0
%e A262921 ..0..1..1..0..0....0..0..0..0..0....1..0..0..1..0....0..0..0..0..0
%e A262921 ..0..1..1..1..1....0..0..0..1..1....1..1..0..0..0....0..1..0..0..1
%e A262921 ..0..0..0..0..0....0..1..1..0..0....0..1..1..1..1....0..0..0..1..1
%e A262921 ..0..1..1..1..1....0..1..0..0..1....0..0..1..1..0....0..1..0..0..1
%e A262921 ..1..0..0..1..0....0..1..1..0..0....0..1..0..0..1....1..0..0..1..0
%e A262921 ..1..0..0..1..0....0..0..0..1..1....1..1..1..1..0....0..0..0..0..0
%e A262921 ..1..1..1..1..0....0..0..1..1..0....0..0..0..1..1....1..0..0..1..0
%Y A262921 Cf. A262917.
%K A262921 nonn
%O A262921 1,1
%A A262921 _R. H. Hardin_, Oct 04 2015