login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A256641
as a simple table
n
a(n)
1
5
2
10
3
10
4
20
5
40
6
40
7
20
8
20
9
40
10
60
11
70
12
70
13
100
14
100
15
40
16
20
17
40
18
60
19
80
20
120
[5,10,10,20,40,40,20,20,40,60,70,70,100,100,40,20, 40,60,80,120]