Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A131505
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A131505 n, -1, n, 2n+2. +0
1
0, -1, 0, 2, 1, -1, 1, 4, 2, -1, 2, 6, 3, -1, 3, 8, 4, -1, 4, 10, 5, -1, 5, 12, 6, -1, 6, 14, 7, -1, 7, 16, 8, -1, 8, 18, 9, -1, 9, 20, 10, -1, 10, 22, 11, -1, 11, 24, 12, -1, 12, 26, 13, -1, 13, 28, 14, -1, 14, 30, 15, -1, 15, 32, 16, -1, 16, 34, 17, -1, 17, 36, 18, -1, 18, 38, 19, -1, 19, 40, 20, -1, 20, 42, 21, -1, 21, 44, 22, -1, 22, 46, 23 (list; graph; listen)
OFFSET

0,4

COMMENT

Based on A129819 (the first with 0 0).

CROSSREFS

Sequence in context: A104404 A162512 A162510 this_sequence A100092 A131508 A140130

Adjacent sequences: A131502 A131503 A131504 this_sequence A131506 A131507 A131508

KEYWORD

sign

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Aug 13 2007

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 6 22:55 EST 2009. Contains 170429 sequences.


AT&T Labs Research