login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A221105
as a simple table
n
a(n)
1
0
2
1570
3
275487
4
50444759
5
8577221762
6
1451267766627
7
244456283406264
[0,1570,275487,50444759,8577221762,1451267766627, 244456283406264]