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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A262465 Number of (n+1) X (n+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.

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%I A262465 #6 Sep 05 2025 13:12:35
%S A262465 1,3,36,457,30229,8080915,15659602612
%N A262465 Number of (n+1) X (n+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 A262465 Diagonal of A262472.
%e A262465 Some solutions for n=4
%e A262465 ..1..0..0..1..0....0..1..0..0..1....0..1..1..1..1....1..1..0..0..0
%e A262465 ..1..0..0..1..0....0..1..0..0..1....1..1..0..1..1....0..0..1..1..0
%e A262465 ..1..0..0..1..0....1..1..0..1..1....0..0..1..1..0....1..1..1..1..0
%e A262465 ..1..0..0..1..0....0..1..0..0..1....1..0..0..1..0....0..0..1..1..0
%e A262465 ..0..0..0..0..0....1..0..0..1..0....0..1..0..0..1....0..0..1..1..0
%Y A262465 Cf. A262472.
%K A262465 nonn,changed
%O A262465 1,2
%A A262465 _R. H. Hardin_, Sep 23 2015