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 A251062 #6 Jun 02 2025 10:17:36 %S A251062 10660,410718,15857764,641508138,26192388204,1074828860950, %T A251062 44184817939580,1818009134485384,74830315374059594, %U A251062 3080655589305779558,126836534137760888551,5222341102062849278834,215027736716667134649183 %N A251062 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01. %C A251062 Column 5 of A251065 %H A251062 R. H. Hardin, <a href="/A251062/b251062.txt">Table of n, a(n) for n = 1..210</a> %e A251062 Some solutions for n=1 %e A251062 ..0..2..2..0..1..2....0..1..1..1..2..2....1..2..2..1..1..2....0..0..0..0..2..1 %e A251062 ..1..0..0..2..1..1....0..0..1..2..1..2....0..0..1..2..2..2....1..2..2..2..0..1 %K A251062 nonn %O A251062 1,1 %A A251062 _R. H. Hardin_, Nov 29 2014