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A032219 Number of ways to partition n labeled elements into pie slices of different sizes allowing the pie to be turned over. 0
1, 1, 4, 5, 16, 82, 169, 541, 2272, 43166, 99859, 479030, 2089751, 13714261, 493866559, 1397727901, 7786145776, 39662742502, 252997758007, 2026338881050, 131040136520017, 427809641611111, 2813929521468817 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..23.

C. G. Bower, Transforms (2)

FORMULA

"DGJ" (bracelet, element, labeled) transform of 1, 1, 1, 1...

CROSSREFS

Sequence in context: A013628 A127007 A007837 * A032144 A032049 A258063

Adjacent sequences:  A032216 A032217 A032218 * A032220 A032221 A032222

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 24 06:13 EST 2018. Contains 299597 sequences. (Running on oeis4.)