login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


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

A203902 as a simple table

n a(n)
1 0
2 0
3 1
4 5
5 20
6 180
7 5013
8 1016629
9 5282300384
10 5396635591915760
11 28512136651893281578375965
12 153869762066843605647265362776201153415021
13 4387155683474529138873327728747664927423052537019723373711103123120

[0,0,1,5,20,180,5013,1016629,5282300384,
 5396635591915760,28512136651893281578375965,
 153869762066843605647265362776201153415021,
 43871556834745291388733277287476649274230525370197\
 23373711103123120]

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 17:21 EDT 2021. Contains 348065 sequences. (Running on oeis4.)