login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A124851 as a simple table

n a(n)
0 1
1 9
2 39
3 141
4 587
5 2479
6 10731
7 47063
8 208547
9 931047
10 4180239
11 18849103
12 85269011
13 386687375
14 1756855951
15 7993210831
16 36405316227
17 165940691695
18 756832203759
19 3453347063599
20 15762537566627
21 71964915505967

[1,9,39,141,587,2479,10731,47063,208547,931047,
 4180239,18849103,85269011,386687375,1756855951,
 7993210831,36405316227,165940691695,756832203759,
 3453347063599,15762537566627,71964915505967]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 22 16:25 EST 2020. Contains 331152 sequences. (Running on oeis4.)