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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A090135 E.g.f.: exp(1-(-1+2*(1-2*x)^(1/2))^(1/2)). 1
1, 3, 16, 124, 1266, 16081, 244798, 4349556, 88445899, 2027133271, 51732933726, 1455469821763, 44769397616386, 1495012542977409, 53873142910303291, 2083965434325009511, 86141049679863875223, 3789452627584599490156 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

FORMULA

a(n) ~ n^(n-1)*2^(3*n-1)/(exp(n-1)*3^(n-1/2)). - Vaclav Kotesovec, Jun 26 2013

CROSSREFS

Sequence in context: A087018 A005119 A190291 * A188417 A157457 A000950

Adjacent sequences:  A090132 A090133 A090134 * A090136 A090137 A090138

KEYWORD

nonn

AUTHOR

Karol A. Penson, Nov 26 2003

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 21 15:11 EST 2019. Contains 320374 sequences. (Running on oeis4.)