Logo

A005562 formatted as a simple table:

n a(n)
4 1
5 5
6 35
7 140
8 720
9 2700
10 12375
11 45375
12 196625
13 715715
14 3006003
15 10930920
16 45048640
17 164105760
18 668144880
19 2441298600
20 9859090500
21 36149998500

[1,5,35,140,720,2700,12375,45375,196625,715715,
 3006003,10930920,45048640,164105760,668144880,
 2441298600,9859090500,36149998500]

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 20 16:54 EST 2009. Contains 171081 sequences.


AT&T Labs Research