Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A061161
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A061161 Numerators in expansion of Euler transform of b(n)=1/4. +0
3
1, 1, 13, 55, 1235, 4615, 55801, 200343, 8977475, 36804235, 367235363, 1444888289, 32062742231, 120729974115, 1205864254225, 5201022002071, 395884671433315, 1603069490974835, 15989295873680415, 64312573140322525 (list; graph; listen)
OFFSET

0,3

COMMENT

Denominators of c(n) are 2^A004134(n).

LINKS

N. J. A. Sloane, Transforms

FORMULA

Numerators of c(n), where c(n)=1/(4*n)*Sum_{k=1..n} c(n-k)*sigma(k), n>0, c(0)=1.

CROSSREFS

Cf. A000712, A061159, A061160.

Sequence in context: A158485 A005902 A051798 this_sequence A007202 A147384 A147011

Adjacent sequences: A061158 A061159 A061160 this_sequence A061162 A061163 A061164

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 17 2001

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


AT&T Labs Research