The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A216985 as a simple table

n a(n)
1 0
2 2
3 14
4 80
5 436
6 2346
7 12578
8 67368
9 360720
10 1931306
11 10340030
12 55359176
13 296385268
14 1586804322
15 8495522018
16 45483800496
17 243513709632
18 1303737284978
19 6980021408654
20 37370028005408
21 200073740644948
22 1071165953874618 

[0,2,14,80,436,2346,12578,67368,360720,1931306,
 10340030,55359176,296385268,1586804322,8495522018,
 45483800496,243513709632,1303737284978,
 6980021408654,37370028005408,200073740644948,
 1071165953874618]

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 15 12:24 EDT 2024. Contains 372540 sequences. (Running on oeis4.)