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 A265927 #7 Dec 18 2015 22:38:09 %S A265927 17012,1119424,3883480,13716476,53801792,238485164,1135042936, %T A265927 5759992224,29783744648,159386938728,851999276304,4668283409720, %U A265927 25354240124600,140755677796776,771872865387920,4322800211903112,23867120132045176 %N A265927 Number of nX7 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique. %C A265927 Column 7 of A265928. %H A265927 R. H. Hardin, <a href="/A265927/b265927.txt">Table of n, a(n) for n = 1..210</a> %H A265927 R. H. Hardin, <a href="/A265927/a265927.txt">Empirical recurrence of order 48</a> %F A265927 Empirical recurrence of order 48 (see link above) %e A265927 Some solutions for n=1 %e A265927 ..1..1..4..4..0..0..4....1..1..3..3..0..1..1....0..2..3..3..2..0..4 %Y A265927 Cf. A265928. %K A265927 nonn %O A265927 1,1 %A A265927 _R. H. Hardin_, Dec 18 2015