Logo

A006879 formatted as a simple table:

n a(n)
0 0
1 4
2 21
3 143
4 1061
5 8363
6 68906
7 586081
8 5096876
9 45086079
10 404204977
11 3663002302
12 33489857205
13 308457624821
14 2858876213963
15 26639628671867
16 249393770611256
17 2344318816620308
18 22116397130086627
19 209317712988603747
20 1986761935284574233
21 18906449883457813088
22 180340017203297174362

[0,4,21,143,1061,8363,68906,586081,5096876,
 45086079,404204977,3663002302,33489857205,
 308457624821,2858876213963,26639628671867,
 249393770611256,2344318816620308,
 22116397130086627,209317712988603747,
 1986761935284574233,18906449883457813088,
 180340017203297174362]

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 November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research