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A063027 Reversion of y - y^2 - y^3 + y^4 - y^5. 0
0, 1, 1, 3, 9, 33, 126, 510, 2127, 9113, 39809, 176735, 794937, 3615045, 16593156, 76773972, 357692784, 1676664234, 7901590287, 37416151209, 177935914254, 849461877990, 4069507806000, 19557840481380, 94267485120510, 455575848843726, 2207117072396682, 10717034365197286 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..27.

Index entries for reversions of series

MATHEMATICA

CoefficientList[InverseSeries[Series[y - y^2 - y^3 + y^4 - y^5, {y, 0, 30}], x], x]

PROG

(Sage) # uses[Reversion from A063022]

Reversion(x - x^2 - x^3 + x^4 - x^5, 24) # Peter Luschny, Jan 08 2019

(PARI) concat(0, Vec(serreverse(x - x^2 - x^3 + x^4 - x^5 + O(x^30)))) \\ Michel Marcus, Jan 08 2019

CROSSREFS

Sequence in context: A050387 A049157 A138178 * A148998 A049185 A049162

Adjacent sequences:  A063024 A063025 A063026 * A063028 A063029 A063030

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard, Jul 05 2001

EXTENSIONS

More terms from Michel Marcus, Jan 08 2019

STATUS

approved

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Last modified January 20 03:25 EST 2022. Contains 350467 sequences. (Running on oeis4.)