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A032210 "DFJ" (bracelet, size, labeled) transform of 2,1,1,1... 1
1, 2, 1, 7, 9, 21, 148, 281, 997, 3037, 83436, 187155, 906986, 4040713, 19429075, 967161214, 2687357885, 15062567325, 76117375036, 495916450391, 2830109972230, 258366446110567, 832033559653913, 5503200805013334 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..200

C. G. Bower, Transforms (2)

PROG

(PARI) seq(n)=[subst(serlaplace(p/y + polcoeff(p, 1) + polcoeff(p, 2)), y, 1)/2 | p <- Vec(y-1+serlaplace((1 + 2*x*y)*prod(k=2, n, 1 + x^k*y/k! + O(x*x^n))))] \\ Andrew Howroyd, Sep 11 2018

CROSSREFS

Sequence in context: A102817 A026252 A032298 * A032135 A032039 A203991

Adjacent sequences:  A032207 A032208 A032209 * A032211 A032212 A032213

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

a(0)=1 prepended by Andrew Howroyd, Sep 11 2018

STATUS

approved

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Last modified October 16 12:51 EDT 2018. Contains 316263 sequences. (Running on oeis4.)