Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A089279
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A089279 a(n) = 2 + sum(k=1 to n) [(-1)^k A001511(k)]. +0
2
1, 3, 2, 5, 4, 6, 5, 9, 8, 10, 9, 12, 11, 13, 12, 17, 16, 18, 17, 20, 19, 21, 20, 24, 23, 25, 24, 27, 26, 28, 27, 33, 32, 34, 33, 36, 35, 37, 36, 40, 39, 41, 40, 43, 42, 44, 43, 48, 47, 49, 48, 51, 50, 52, 51, 55, 54, 56, 55, 58, 57, 59, 58, 65, 64, 66, 65, 68, 67, 69, 68, 72 (list; graph; listen)
OFFSET

1,2

COMMENT

a(2^n) = 2^n+1.

FORMULA

a(2n+1) = A101925(n), a(2n+2) = a(2n+3)+1. - R. Stephan, Dec 28 2004

CROSSREFS

Cf. A001511, A005187, A101925.

Sequence in context: A053087 A062327 A075491 this_sequence A049820 A109712 A095049

Adjacent sequences: A089276 A089277 A089278 this_sequence A089280 A089281 A089282

KEYWORD

nonn

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 28 2003

EXTENSIONS

Edited by Don Reble (djr(AT)nk.ca), Nov 15 2005

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 4 08:07 EST 2009. Contains 170310 sequences.


AT&T Labs Research