login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A079907
as a simple table
n
a(n)
1
1
2
2
3
21
4
25
5
33
6
54
7
78
8
235
9
1566
10
2273
11
2310
12
4121
13
7775
14
42249
15
105974
16
138961
[1,2,21,25,33,54,78,235,1566,2273,2310,4121,7775, 42249,105974,138961]