login
The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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

A058801 as a simple table

na(n)
21
32
46
525
6116
7625
83757
925140
10184511
111473861
1212711339
13117598686
141160399052
1512152333659
16134487937252
171566878426731
1819154490559458

[1,2,6,25,116,625,3757,25140,184511,1473861,
 12711339,117598686,1160399052,12152333659,
 134487937252,1566878426731,19154490559458]

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified December 28 15:42 EST 2024. Contains 379342 sequences.
License Agreements, Terms of Use, Privacy Policy