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!)

A221769 as a simple table

n a(n)
1 3
2 27
3 240
4 2127
5 18828
6 166581
7 1473549
8 13033908
9 115285587
10 1019699649
11 9019211256
12 79774585647
13 705603080553
14 6241031204616
15 55201672045839
16 488256584905473
17 4318609990477032
18 38197932848425719
19 337859190101460441 

[3,27,240,2127,18828,166581,1473549,13033908,
 115285587,1019699649,9019211256,79774585647,
 705603080553,6241031204616,55201672045839,
 488256584905473,4318609990477032,
 38197932848425719,337859190101460441]

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 23 11:13 EDT 2024. Contains 371905 sequences. (Running on oeis4.)