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!)

A219672 as a simple table

n a(n)
0 0
1 1
2 5
3 20
4 87
5 405
6 1924
7 9225
8 44625
9 217528
10 1066725
11 5256087
12 26001000
13 129053365
14 642376709
15 3205403100
16 16029187391
17 80309053285
18 403040543420
19 2025751379997
20 10195547237235
21 51376594943136
22 259180112907875
23 1308811957775785
24 6615383878581072

[0,1,5,20,87,405,1924,9225,44625,217528,1066725,
 5256087,26001000,129053365,642376709,3205403100,
 16029187391,80309053285,403040543420,
 2025751379997,10195547237235,51376594943136,
 259180112907875,1308811957775785,6615383878581072]

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 April 23 06:45 EDT 2024. Contains 371906 sequences. (Running on oeis4.)