Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A141355
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A141355 Jacobsthal numbers without A001045(3n)=A132805. +0
1
1, 1, 5, 11, 43, 85, 341, 683, 2731, 5461 (list; graph; listen)
OFFSET

0,3

COMMENT

a(2n+1)-a(2n)= 0, 6, 42, 342, 2730 =6*A015565

FORMULA

a(4n+1)=2a(4n)-1, a(4n+2)=4a(4n+1)+1, a(4n+3)=2a(4n+2)+1, a(4n+4)=4a(4n+3)-1.

CROSSREFS

Sequence in context: A006382 A055113 A129015 this_sequence A097056 A092358 A079029

Adjacent sequences: A141352 A141353 A141354 this_sequence A141356 A141357 A141358

KEYWORD

nonn,uned

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Aug 03 2008

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 30 22:12 EST 2008. Contains 150989 sequences.


AT&T Labs Research