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A032234 "DGK" (bracelet, element, unlabeled) transform of 1,3,5,7,... 1

%I #8 Sep 13 2018 17:24:33

%S 1,1,3,8,15,34,67,135,285,598,1314,2946,6702,15403,35569,82884,190820,

%T 444384,1026605,2364499,5454576,12522380,28698420,65469202,149407615,

%U 339508581,769387875,1739536216,3922183539,8828954730

%N "DGK" (bracelet, element, unlabeled) transform of 1,3,5,7,...

%H Andrew Howroyd, <a href="/A032234/b032234.txt">Table of n, a(n) for n = 0..500</a>

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

%o (PARI) seq(n)=[subst(serlaplace(p/y + polcoeff(p,1) + polcoeff(p,2)),y,1)/2 | p <- Vec(y-1+prod(k=1, n, (1 + x^k*y + O(x*x^n))^(2*k-1)))] \\ _Andrew Howroyd_, Sep 13 2018

%K nonn

%O 0,3

%A _Christian G. Bower_

%E a(0)=1 prepended by _Andrew Howroyd_, Sep 13 2018

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)