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 A066283 #12 Sep 19 2024 02:12:44 %S A066283 0,0,0,0,0,1,0,0,0,2,0,5,2,4,3,8,4,28,14,20,20,41 %N A066283 Number of 3-dimensional polyominoes (or polycubes) with n cells and rotational symmetry group of order exactly 6. %C A066283 The sequence counts "one-sided" polycubes (A000162); chiral polycubes count twice. - _John Mason_, Sep 18 2024 %D A066283 W. F. Lunnon, Symmetry of cubical and general polyominoes, pp. 101-108 of R. C. Read, editor, Graph Theory and Computing. Academic Press, NY, 1972. %F A066283 a(n) = 2*CD(n)+CF(n), see Lunnon paper for naming convention. - _John Mason_, Sep 18 2024 %Y A066283 See A000162, A066273, A066281, A066287, A066288, A066453, A066454. %K A066283 nonn,more %O A066283 1,10 %A A066283 Brendan Owen (brendan_owen(AT)yahoo.com), Jan 01 2002 %E A066283 Name clarified and more terms from _John Mason_, Sep 18 2024