login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


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

A018457 as a simple table

n a(n)
1 1
2 2
3 4
4 5
5 8
6 10
7 11
8 20
9 22
10 40
11 44
12 55
13 88
14 110
15 220
16 440

[1,2,4,5,8,10,11,20,22,40,44,55,88,110,220,440]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 23 19:26 EDT 2021. Contains 348215 sequences. (Running on oeis4.)