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!)

A159308 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 14
5 40
6 154
7 631
8 2246
9 10476
10 71232
11 383220
12 1553841
13 8223567
14 58756725
15 338290401
16 1754330940
17 11744499990
18 103864469131
19 1220564280222
20 17394859369497
21 214311637862464
22 1891506713163679
23 10894997683415647

[1,1,2,5,14,40,154,631,2246,10476,71232,383220,
 1553841,8223567,58756725,338290401,1754330940,
 11744499990,103864469131,1220564280222,
 17394859369497,214311637862464,1891506713163679,
 10894997683415647]

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 18 16:27 EST 2020. Contains 331011 sequences. (Running on oeis4.)