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!)

A156291 as a simple table

n a(n)
1 1
2 3
3 8
4 21
5 104
6 315
7 105
8 1040
9 5355
10 19344
11 3255
12 125840
13 1826055
14 15107664
15 86590175
16 9765
17 880880
18 23738715
19 317260944
20 2684295425
21 16476602400
22 1240155
23 962801840
24 129637122615
25 6196423497264
26 150285647959475
27 2261529015616800
28 23895819265962735

[1,3,8,21,104,315,105,1040,5355,19344,3255,125840,
 1826055,15107664,86590175,9765,880880,23738715,
 317260944,2684295425,16476602400,1240155,
 962801840,129637122615,6196423497264,
 150285647959475,2261529015616800,
 23895819265962735]

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 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)