login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A081140 as a simple table

n a(n)
0 0
1 0
2 1
3 30
4 600
5 10000
6 150000
7 2100000
8 28000000
9 360000000
10 4500000000
11 55000000000
12 660000000000
13 7800000000000
14 91000000000000
15 1050000000000000
16 12000000000000000
17 136000000000000000
18 1530000000000000000

[0,0,1,30,600,10000,150000,2100000,28000000,
 360000000,4500000000,55000000000,660000000000,
 7800000000000,91000000000000,1050000000000000,
 12000000000000000,136000000000000000,
 1530000000000000000]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 3 23:22 EDT 2024. Contains 372225 sequences. (Running on oeis4.)