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 A032202 Shifts left 2 places under "CIK" (necklace, indistinct, unlabeled) transform. 1
 1, 1, 1, 2, 3, 6, 10, 22, 41, 92, 193, 435, 963, 2215, 5051, 11754, 27375, 64381, 151898, 360661, 859149, 2055804, 4934428, 11883930, 28699336, 69497354, 168691424, 410399073, 1000486306, 2443761830, 5979742904, 14656709518 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Andrew Howroyd, Table of n, a(n) for n = 1..200 PROG (PARI) CIK(p, n)={sum(d=1, n, eulerphi(d)/d*log(subst(1/(1+O(x*x^(n\d))-p), x, x^d)))} seq(n)={my(p=1+O(x)); for(i=1, n\2, p=1+x+x*CIK(x*p, 2*i)); Vec(p+O(x^n))} \\ Andrew Howroyd, Jun 20 2018 CROSSREFS Sequence in context: A137208 A049527 A074371 * A125702 A052817 A156803 Adjacent sequences:  A032199 A032200 A032201 * A032203 A032204 A032205 KEYWORD nonn,eigen AUTHOR STATUS approved

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Last modified October 23 07:20 EDT 2018. Contains 316520 sequences. (Running on oeis4.)