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 A367174 #7 Nov 08 2023 11:27:47 %S A367174 1,2,5,13,26,89,233,610,2179,5707 %N A367174 a(n) = the maximum number of distinct tilings of a polyhex of size n using any combination of polyhex tiles of sizes 1 through n. %C A367174 The sequence considers reflections and rotations as distinct tilings. The polyhexes being tiled and the tiles themselves may be with or without holes. %e A367174 a(3) = 5 because the polyhex of size 3 that has each cell touching both the other cells can be tiled by (1) a polyhex of size 3, (2) 3 polyhexes of size 1, and (3) a polyhex of size 1 and a polyhex of size 2 in three distinct ways. %Y A367174 Cf. A000228, A367172, A367173. %K A367174 nonn,more %O A367174 1,2 %A A367174 _John Mason_ from an idea of _Craig Knecht_, Nov 07 2023