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 A056355 #8 Oct 25 2019 16:56:11
%S A056355 1,1,2,3,7,12,36,89,322,1137,4704,19839,88508,399680,1839947,8533488,
%T A056355 39893901,187393550,884153396,4185740195,19876594537,94633345608,
%U A056355 451615319433,2159769331317,10348546548695,49672000435724,238804871206358,1149792978954373,5543621482141513
%N A056355 Number of bracelet structures using a maximum of five different colored beads.
%C A056355 Turning over will not create a new bracelet. Permuting the colors of the beads will not change the structure.
%D A056355 M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]
%H A056355 Andrew Howroyd, <a href="/A056355/b056355.txt">Table of n, a(n) for n = 0..200</a>
%F A056355 Use de Bruijn's generalization of Polya's enumeration theorem as discussed in reference.
%F A056355 a(n) = Sum_{k=1..5} A152176(n, k) for n > 0. - _Andrew Howroyd_, Oct 25 2019
%Y A056355 Cf. A056293, A152176.
%K A056355 nonn
%O A056355 0,3
%A A056355 _Marks R. Nester_
%E A056355 a(0)=1 prepended and terms a(25) and beyond from _Andrew Howroyd_, Oct 25 2019