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!)

A221500 as a simple table

n a(n)
1 1
2 21
3 228
4 1733
5 14297
6 111042
7 874106
8 6765307
9 52691160
10 408808871
11 3171542725
12 24602720628
13 190809097139
14 1479787939455
15 11475910286377
16 88994984484326
17 690147796546982
18 5352001020952269
19 41503963539351397
20 321856665112343658

[1,21,228,1733,14297,111042,874106,6765307,
 52691160,408808871,3171542725,24602720628,
 190809097139,1479787939455,11475910286377,
 88994984484326,690147796546982,5352001020952269,
 41503963539351397,321856665112343658]

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 13 05:19 EDT 2024. Contains 371639 sequences. (Running on oeis4.)