login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A060066
as a simple table
n
a(n)
1
1
2
3
3
15
4
93
5
657
6
5063
7
41535
8
357205
9
3187599
10
29303687
11
276062807
12
2654603987
[1,3,15,93,657,5063,41535,357205,3187599,29303687, 276062807,2654603987]