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!)

A143921 as a simple table

n a(n)
0 1
1 1
2 3
3 10
4 49
5 281
6 1975
7 15933
8 147457
9 1528282
10 17603351
11 222691261
12 3072168481
13 45882929925
14 737717712439
15 12703639993306
16 233281370579713
17 4550465650811445
18 93966210612477271
19 2047838398486924977

[1,1,3,10,49,281,1975,15933,147457,1528282,
 17603351,222691261,3072168481,45882929925,
 737717712439,12703639993306,233281370579713,
 4550465650811445,93966210612477271,
 2047838398486924977]

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 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)