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A262471 Number of (n+1)X(7+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits. 1

%I #4 Sep 23 2015 18:51:34

%S 1,86,7396,107731,2924245,194647694,15659602612,997197229531,

%T 73403875498285,5949800358307070,491379103358093140,

%U 40436885956386358531,3371777492321746335493,284471978025689266803566

%N Number of (n+1)X(7+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits.

%C Column 7 of A262472.

%H R. H. Hardin, <a href="/A262471/b262471.txt">Table of n, a(n) for n = 1..57</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A262472.

%K nonn

%O 1,2

%A _R. H. Hardin_, Sep 23 2015

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Last modified August 26 21:09 EDT 2024. Contains 375462 sequences. (Running on oeis4.)