Logo

A030226 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 3
5 11
6 65
7 287
8 1373
9 6370
10 30149
11 142638
12 681520
13 3270604
14 15789461
15 76562081
16 372832744
17 1822142769
18 8934740804
19 43938715224
20 216650217219

[0,0,0,3,11,65,287,1373,6370,30149,142638,681520,
 3270604,15789461,76562081,372832744,1822142769,
 8934740804,43938715224,216650217219]

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 29 12:46 EST 2009. Contains 167659 sequences.


AT&T Labs Research