Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A007876
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A007876 a(2n-1) = n*a(2n-2), a(2n) = n*a(2n-1) + 1. +0
1
1, 2, 4, 9, 27, 82, 328, 1313, 6565, 32826, 196956, 1181737, 8272159, 57905114, 463240912, 3705927297, 33353345673, 300180111058, 3001801110580, 30018011105801, 330198122163811, 3632179343801922, 43586152125623064 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A112706 A110138 A003320 this_sequence A005095 A092329 A053548

Adjacent sequences: A007873 A007874 A007875 this_sequence A007877 A007878 A007879

KEYWORD

nonn,easy

AUTHOR

buzzard(AT)math.berkeley.edu (Kevin Buzzard)

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 July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.