A032137 - OEIS

%I #9 Sep 12 2018 16:08:47

%S 1,1,3,14,27,194,2180,6292,32235,340706,8923824,27260408,178494888,

%T 1143651456,18358542488,920187284252,3190427876155,22452876941634,

%U 154193186847608,1427331360177616,30063060295205628

%N "CFJ" (necklace, size, labeled) transform of 1,3,5,7...

%H Andrew Howroyd, <a href="/A032137/b032137.txt">Table of n, a(n) for n = 0..200</a>

%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>

%H <a href="/index/Lu#Lyndon">Index entries for sequences related to Lyndon words</a>

%o (PARI) seq(n)=[subst(serlaplace(p/y),y,1) | p <- Vec(y-1+serlaplace(prod(k=1, n, (1 + (2*k-1)*x^k*y/k! + O(x*x^n)))))] \\ _Andrew Howroyd_, Sep 12 2018

%K nonn

%O 0,3

%A _Christian G. Bower_

%E a(0)=1 prepended by _Andrew Howroyd_, Sep 12 2018