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 A056322 #7 Aug 22 2017 20:53:08 %S A056322 0,0,0,0,0,360,7560,95760,952560,8217720,64615680,476514720, %T A056322 3355679880,22837094280,151449674040,984573560880,6302070915840, %U A056322 39847410373680,249509384858160,1550188402338240,9570844671217200 %N A056322 Number of primitive (aperiodic) reversible strings with n beads using exactly six different colors. %C A056322 A string and its reverse are considered to be equivalent. %D A056322 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] %F A056322 Sum mu(d)*A056313(n/d) where d|n. %Y A056322 Cf. A056317, A056313. %K A056322 nonn %O A056322 1,6 %A A056322 _Marks R. Nester_