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 A229436 #5 Jul 23 2025 05:44:59 %S A229436 55987,469959685,1848069959519,4960640065587845,11611618877765958295, %T A229436 26247877098036804502973,58617925117292712440935711, %U A229436 129962013483443679187405035221,286798084150221639600190350699431 %N A229436 Number of nX6 0..6 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X7 0..2 array. %C A229436 Column 6 of A229437 %e A229436 Some solutions for n=2 %e A229436 ..0..0..0..2..5..3....0..0..0..2..3..1....0..0..0..2..2..2....0..0..0..1..1..4 %e A229436 ..0..1..1..3..4..1....0..1..2..4..2..0....0..0..3..2..2..1....0..0..1..1..2..2 %K A229436 nonn %O A229436 1,1 %A A229436 _R. H. Hardin_ Sep 23 2013