login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A248702
as a simple table
n
a(n)
0
2
1
3
2
19
3
43
4
2687
5
179819
6
1107791
[2,3,19,43,2687,179819,1107791]