Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A110113
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A110113 Diagonal sums of A083856. +0
1
0, 1, 2, 3, 5, 9, 17, 34, 71, 154, 346, 802, 1914, 4693, 11800, 30379, 79963, 214925, 589223, 1645994, 4681037, 13541446, 39817560, 118925810, 360577616, 1109158545, 3459636358, 10936941299, 35026082521, 113588037953 (list; graph; listen)
OFFSET

0,3

COMMENT

Sums of antidiagonals of A083856.

FORMULA

a(n)=sum{k=0..n, ((1+sqrt(4(k-n)+1))/2)^n/sqrt(4(k-n)+1)-((1-sqrt(4(k-n)+1))/2)^n/sqrt(4(k-n)+1)}

CROSSREFS

Sequence in context: A094373 A061902 A166286 this_sequence A137155 A014227 A064769

Adjacent sequences: A110110 A110111 A110112 this_sequence A110114 A110115 A110116

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jul 12 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 10 12:37 EST 2009. Contains 170569 sequences.


AT&T Labs Research