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 A096581 #13 Aug 08 2025 03:26:30 %S A096581 0,2,4,12,28,68,150,336,724,1550,3234,6688,13590,27354,54334 %N A096581 Number of solid partitions non-symmetric under L^2 (L= 'time-lapse' symmetry operation) on solid partitions. %H A096581 Wouter Meeussen, <a href="/A094504/a094504_1.txt">Mma functions for plane and solid partitions</a> %F A096581 By definition, A000293(n) = A096580(n) + 2*a(n). %e A096581 Solid partition [{{3,1,1,1},{3}},{{2,1}},{{1}},{{1}},{{1}}] lapses (L) into %e A096581 [{{4,1},{2},{1},{1},{1}},{{1,1},{1}},{{1,1}}], then into %e A096581 [{{2,1,1,1,1},{2,1},{2}},{{1,1}},{{1}},{{1}}], further into %e A096581 [{{5,2,1},{2},{1},{1}},{{1,1,1}}] and returns after L^4 to %e A096581 [{{3,1,1,1},{3}},{{2,1}},{{1}},{{1}},{{1}}] %t A096581 (* See link above. *) %Y A096581 Cf. A000293, A094504, A094508, A096272, A096573, A096574, A096575, A096576, A096577, A096578, A096579, A096580. %K A096581 nonn,more %O A096581 1,2 %A A096581 _Wouter Meeussen_, Jun 27 2004