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!)

A136284 as a simple table

n a(n)
1 0
2 0
3 4
4 31
5 227
6 1782
7 15564
8 151455
9 1635703
10 19457998
11 252962528
12 3568119351
13 54262590843
14 884831668974
15 15397747311556
16 284767367151241
17 5576696534340377
18 115269731259650802
19 2507575460681918232
20 57262481202198407625
21 1369461739333488200365

[0,0,4,31,227,1782,15564,151455,1635703,19457998,
 252962528,3568119351,54262590843,884831668974,
 15397747311556,284767367151241,5576696534340377,
 115269731259650802,2507575460681918232,
 57262481202198407625,1369461739333488200365]

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 March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)