login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A118510
as a simple table
n
a(n)
1
1
2
18
3
19
4
36
5
37
6
54
7
55
8
72
9
73
[1,18,19,36,37,54,55,72,73]