login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A028978
as a simple table
n
a(n)
1
3
2
11
3
19
4
193
5
1061
6
1934071
[3,11,19,193,1061,1934071]