Logo

A013265 formatted as a simple table:

n a(n)
0 -1
1 1
2 -6
3 23
4 -90
5 509
6 -1960
7 7251
8 27720
9 -1167421
10 20353608
11 -322757359
12 4828920096
13 -72221046535
14 1088176720800
15 -16527535024457
16 253611377594496
17 -3894220888850401
18 59159990565014280

[-1,1,-6,23,-90,509,-1960,7251,27720,-1167421,
 20353608,-322757359,4828920096,-72221046535,
 1088176720800,-16527535024457,253611377594496,
 -3894220888850401,59159990565014280]

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 14:50 EST 2009. Contains 167570 sequences.


AT&T Labs Research