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 A361220 #5 Mar 11 2023 08:38:02 %S A361220 3,29,370,5752,82310,1232770,19119198,307914196,5020522468, %T A361220 89323885136,1708142066600 %N A361220 Maximum number of ways in which a set of integer-sided rectangular pieces can tile an n X 4 rectangle. %C A361220 Tilings that are rotations or reflections of each other are considered distinct. %e A361220 The following table shows the sets of pieces that give the maximum number of tilings for n <= 11. All these sets are unique. %e A361220 \ Number of pieces of size %e A361220 n \ 1 X 1 | 1 X 2 | 1 X 3 | 1 X 4 %e A361220 ----+-------+-------+-------+------ %e A361220 1 | 2 | 1 | 0 | 0 %e A361220 2 | 4 | 2 | 0 | 0 %e A361220 3 | 3 | 3 | 1 | 0 %e A361220 4 | 5 | 4 | 1 | 0 %e A361220 5 | 7 | 5 | 1 | 0 %e A361220 6 | 8 | 5 | 2 | 0 %e A361220 7 | 10 | 6 | 2 | 0 %e A361220 8 | 10 | 8 | 2 | 0 %e A361220 9 | 11 | 8 | 3 | 0 %e A361220 10 | 11 | 8 | 3 | 1 %e A361220 11 | 13 | 9 | 3 | 1 %Y A361220 Fourth column of A361216. %K A361220 nonn,more %O A361220 1,1 %A A361220 _Pontus von Brömssen_, Mar 05 2023