Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A082297
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A082297 Main diagonal of array A083861. +0
2
0, 1, 5, 22, 105, 551, 3125, 18901, 120785, 809956, 5669525, 41253125, 310968905, 2421594449, 19434554165, 160416509794, 1359425390625, 11809173506531, 105013666399445, 954781355707373, 8865807366284825, 83996265859375000 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n)=(((5+sqrt(4n+1))/2)^n-((5-sqrt(4n+1))/2)^n)/sqrt(4n+1)

CROSSREFS

Cf. A083859, A083862.

Adjacent sequences: A082294 A082295 A082296 this_sequence A082298 A082299 A082300

Sequence in context: A017971 A017972 A008485 this_sequence A005033 A127618 A127619

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 06 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 October 15 09:18 EDT 2008. Contains 145015 sequences.


AT&T Labs Research