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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.

A263123 Number of (n+3)X(5+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.

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%I A263123 #3 Oct 10 2015 07:08:41
%S A263123 52446,887805,17782827,344322375,6946980030,113558538589,
%T A263123 2022945129963,36861501672007,713132356848318,12055652684915197
%N A263123 Number of (n+3)X(5+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.
%C A263123 Column 5 of A263124.
%e A263123 Some solutions for n=1
%e A263123 ..1..1..1..1..0..0..0..0....1..0..0..0..0..1..1..1....1..1..1..0..0..0..0..1
%e A263123 ..0..1..1..1..1..0..0..0....1..0..1..1..0..1..0..0....0..1..1..1..1..0..0..0
%e A263123 ..0..1..0..1..1..0..1..0....0..0..0..1..1..1..1..0....1..1..0..1..0..0..1..0
%e A263123 ..1..0..0..0..0..1..1..1....0..1..0..1..1..0..1..0....1..0..0..0..0..1..1..1
%Y A263123 Cf. A263124.
%K A263123 nonn
%O A263123 1,1
%A A263123 _R. H. Hardin_, Oct 10 2015

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