login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A211926
as a simple table
n
a(n)
1
0
2
0
3
27
4
1685
5
43607
6
529891
7
4014522
8
22135982
9
97128215
10
358619827
11
1156561481
12
3344471967
13
8839393862
[0,0,27,1685,43607,529891,4014522,22135982, 97128215,358619827,1156561481,3344471967, 8839393862]