login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A141142 Numerators of power series arising in random graphs. 1
-1, 2, -4, 44, -104, 40, -7648 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Denominators are A141143. Series given in Bouchard and Marino 2.31, p. 5, with citations to earlier literature.

LINKS

Vincent Bouchard and Marcos Marino, Hurwitz numbers, matrix models and enumerative geometry, (replaced) June 8, 2008.

FORMULA

Power series s(z) defined by (1+z)e^(-z) = (1 + s(z))e^(-s(z)).

EXAMPLE

s(z) = -z + (2/3)*z^2 - (4/9)*z^3 + (44/135)*z^4 - (104/405)*z^5 + (40/189)*z^6 - (7648/42525)*z^7 + O(z^8).

CROSSREFS

Cf. A141143.

Sequence in context: A018317 A059794 A116611 * A007596 A050588 A105282

Adjacent sequences:  A141139 A141140 A141141 * A141143 A141144 A141145

KEYWORD

frac,more,sign

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Jun 10 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 01:56 EST 2012. Contains 205860 sequences.