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!)

A321723 as a simple table

n a(n)
0 1
1 1
2 0
3 0
4 9
5 20
6 96
7 656
8 5584
9 48913
10 494264
11 5383552
12 65103875
13 840566080
14 11834159652
15 176621049784
16 2838040416201
17 48060623405312

[1,1,0,0,9,20,96,656,5584,48913,494264,5383552,
 65103875,840566080,11834159652,176621049784,
 2838040416201,48060623405312]

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 August 2 09:22 EDT 2021. Contains 346422 sequences. (Running on oeis4.)