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A063022 Reversion of y - y^2 - y^3 - y^5. 4
0, 1, 1, 3, 10, 39, 161, 698, 3126, 14360, 67276, 320229, 1544257, 7528577, 37044530, 183733552, 917598103, 4610484729, 23289784660, 118209987295, 602556082765, 3083273829240, 15832177371585, 81554320766310, 421320423560400, 2182395044437686, 11332298321692704 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Robert Israel, Table of n, a(n) for n = 0..1355

Index entries for reversions of series

MAPLE

with(gfun):

F:= RootOf(y-y^2-y^3-y^5-x, y):

DE:=holexprtodiffeq(F, g(x)):

Rec:= diffeqtorec(DE, g(x), a(n)):

f:= rectoproc(Rec, a(n), remember):

map(f, [$0..50]); # Robert Israel, Jan 08 2019

MATHEMATICA

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

PROG

(Sage)

def Reversion(gf, n):

    g = SR(gf)

    R.<x> = PowerSeriesRing(SR, default_prec=n)

    T = taylor(g, x, 0, n).list()

    return R(T).reverse().list()

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

CROSSREFS

Cf. A063019, A063023.

Sequence in context: A151069 A151070 A151071 * A218001 A307490 A253194

Adjacent sequences:  A063019 A063020 A063021 * A063023 A063024 A063025

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard, Jul 05 2001

STATUS

approved

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Last modified December 11 18:19 EST 2019. Contains 329925 sequences. (Running on oeis4.)