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A238465 Generalized ordered Bell numbers Bo(8,n). 1
1, 8, 136, 3464, 117640, 4993928, 254396296, 15119104904, 1026912225160, 78468091562888, 6662087721342856, 622186077361470344, 63389713864392140680, 6996476832548305415048, 831619554631233264449416, 105909083171031626820475784 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row 8 of array A094416, which see for more information.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..250

FORMULA

E.g.f.: 1/(9 - 8*exp(x)).

a(n) ~ n! / (9*(log(9/8))^(n+1)). - Vaclav Kotesovec, Mar 20 2014

MATHEMATICA

t = 30; Range[0, t]! CoefficientList[Series[1/(9 - 8 Exp[x]), {x, 0, t}], x]

PROG

(MAGMA) m:=20; R<x>:=LaurentSeriesRing(RationalField(), m); b:=Coefficients(R!(1/(9 - 8*Exp(x)))); [Factorial(n-1)*b[n]: n in [1..m]];

CROSSREFS

Cf. A000670, A004123, A032033, A094417, A094418, A094419, A238464.

Sequence in context: A131927 A132869 A036915 * A049211 A024283 A134053

Adjacent sequences:  A238462 A238463 A238464 * A238466 A238467 A238468

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Mar 18 2014

STATUS

approved

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Last modified August 18 00:28 EDT 2018. Contains 313817 sequences. (Running on oeis4.)