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A063025 Reversion of y - y^2 + y^3 - y^4 - y^5. 1
0, 1, 1, 1, 1, 3, 14, 50, 141, 357, 957, 2977, 10023, 33145, 104788, 324700, 1021972, 3313866, 10941283, 36150319, 118733636, 389270860, 1282538880, 4257534180, 14209589940, 47521738212, 159015643218, 532696723370, 1788631842842, 6022167998854, 20322687778376 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

LINKS

Robert Israel, Table of n, a(n) for n = 0..1819

Index entries for reversions of series

MAPLE

with(gfun):

F:= RootOf(y-y^2+y^3-y^4-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, Oct 27 2021

MATHEMATICA

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

PROG

(PARI) my(y='y+O('y^30)); concat(0, Vec(serreverse(y - y^2 + y^3 - y^4 - y^5))) \\ Michel Marcus, Oct 27 2021

CROSSREFS

Sequence in context: A139263 A337075 A261043 * A187917 A164304 A098521

Adjacent sequences:  A063022 A063023 A063024 * A063026 A063027 A063028

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard, Jul 05 2001

STATUS

approved

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