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 A251226 #6 Mar 15 2023 11:13:50 %S A251226 7275,453273,27662994,1697323707,103986727042,6373427948731, %T A251226 390586327228567,23937316421928928,1466999236798838668, %U A251226 89905332249468711934,5509861728752949673273,337672768681288148069329 %N A251226 Number of (n+1) X (6+1) 0..1 arrays with no 2 X 2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements. %C A251226 Column 6 of A251228. %H A251226 R. H. Hardin, <a href="/A251226/b251226.txt">Table of n, a(n) for n = 1..210</a> %H A251226 R. H. Hardin, <a href="/A251226/a251226.txt">Empirical recurrence of order 54</a> %F A251226 Empirical recurrence of order 54 (see link above). %e A251226 Some solutions for n=1 %e A251226 ..1..0..0..0..0..0..1....0..0..0..0..0..0..0....1..1..1..1..0..1..0 %e A251226 ..0..0..1..0..0..0..0....1..1..0..1..0..0..1....0..0..1..0..0..1..0 %Y A251226 Cf. A251228. %K A251226 nonn %O A251226 1,1 %A A251226 _R. H. Hardin_, Nov 30 2014