Logo

A143608 formatted as a simple table:

n a(n)
1 1
2 4
3 7
4 24
5 41
6 140
7 239
8 816
9 1393
10 4756
11 8119
12 27720
13 47321
14 161564
15 275807
16 941664
17 1607521
18 5488420
19 9369319
20 31988856
21 54608393 

[1,4,7,24,41,140,239,816,1393,4756,8119,27720,
 47321,161564,275807,941664,1607521,5488420,
 9369319,31988856,54608393]

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 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.