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!)

A091643 as a simple table

n a(n)
1 4
2 19
3 108
4 687
5 4766
6 35139
7 267486
8 2083814
9 16531372
10 133059504
11 1082995490
12 8896945667
13 73651718719
14 613664827254

[4,19,108,687,4766,35139,267486,2083814,16531372,
 133059504,1082995490,8896945667,73651718719,
 613664827254]

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 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)