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.
%I A201494 #6 Jul 22 2025 16:16:28 %S A201494 18,36487,168357815,732383803600,2571822263246639,7383126698273869479 %N A201494 Number of nX6 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing. %C A201494 Column 6 of A201496 %e A201494 Some solutions for n=2 %e A201494 .-2.-1.-1..0..0..2...-2.-1.-1..1..1..1...-2.-1.-1..0..1..1...-2..0..0..0..1..2 %e A201494 .-1.-1.-1..2..2..1....1..0..0.-2..1..1....2.-2..2..2.-2..0...-2..0..2..2.-1.-2 %K A201494 nonn %O A201494 1,1 %A A201494 _R. H. Hardin_ Dec 02 2011