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 A123794 #7 Feb 15 2025 15:28:59 %S A123794 1,24,1861,168661,16902651,1797062518,199090941069 %N A123794 Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 6. %Y A123794 Cf. A112389, A123762 - A123827, A123829 - A123849. %K A123794 nonn,hard %O A123794 1,2 %A A123794 _Søren Eilers_, Oct 29 2006