Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A081679
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A081679 A sum of decreasing powers. +0
2
1, 1, 1, 16, 199, 1756, 13231, 91876, 608959, 3922396, 24798511, 154802836, 957674719, 5885660236, 35993747791, 219289723396, 1332092132479, 8073205753276, 48838076777071, 295005107805556, 1779844007102239 (list; graph; listen)
OFFSET

0,4

COMMENT

Inverse binomial transform of A081680

FORMULA

a(n)=(6^n-5^n-4^n-3^n+4*2^n)/2

CROSSREFS

Sequence in context: A103721 A093060 A016226 this_sequence A125451 A129333 A001810

Adjacent sequences: A081676 A081677 A081678 this_sequence A081680 A081681 A081682

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Mar 30 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 September 8 08:06 EDT 2008. Contains 143486 sequences.


AT&T Labs Research