Logo

A089402 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 3
4 8
5 22
6 68
7 217
8 720
9 2438
10 8412
11 29414
12 104048
13 371516
14 1337352
15 4847637
16 17679264
17 64823110
18 238820780
19 883634026
20 3282065072
21 12233141908
22 45741298616
23 171529836218
24 644952132448
25 2430973304732
26 9183676744088

[1,1,2,3,8,22,68,217,720,2438,8412,29414,104048,
 371516,1337352,4847637,17679264,64823110,
 238820780,883634026,3282065072,12233141908,
 45741298616,171529836218,644952132448,
 2430973304732,9183676744088]

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 9 18:50 EST 2009. Contains 170568 sequences.


AT&T Labs Research