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!)

A180875 as a simple table

n a(n)
0 1
1 3
2 11
3 55
4 355
5 2807
6 26259
7 283623
8 3473315
9 47552791
10 719718067
11 11932268231
12 215053088835
13 4186305575415
14 87534887434835
15 1956680617267879
16 46561960552921315
17 1175204650272267479
18 31357650670190565363
19 881958890078887314567
20 26078499305918584929155
21 808742391638178302137783

[1,3,11,55,355,2807,26259,283623,3473315,47552791,
 719718067,11932268231,215053088835,4186305575415,
 87534887434835,1956680617267879,46561960552921315,
 1175204650272267479,31357650670190565363,
 881958890078887314567,26078499305918584929155,
 808742391638178302137783]

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 28 04:58 EDT 2024. Contains 371235 sequences. (Running on oeis4.)