Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A083672
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A083672 Binomial transform of 1,8,48,256,1280,6144,... (cf. A002697). +0
2
1, 1, 9, 25, 97, 321, 1097, 3641, 12033, 39361, 127945, 413337, 1328609, 4251521, 13551753, 43046713, 136314625, 430467201, 1355971721, 4261625369, 13366006881, 41841412801, 130754415049, 407953774905, 1270932914177 (list; graph; listen)
OFFSET

0,3

FORMULA

1/6 * [(n+3)3^n + (3n+3)(-1)^n].

O.g.f.: -(x-1)^3/[(-1+3*x)^2*(1+x)^2]. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 02 2008

CROSSREFS

Cf. A045891, A002697.

Sequence in context: A147460 A147475 A146674 this_sequence A083100 A084058 A108570

Adjacent sequences: A083669 A083670 A083671 this_sequence A083673 A083674 A083675

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 02 2003

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 November 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research