login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A220879
as a simple table
n
a(n)
1
0
2
1
3
0
4
0
5
7
6
7281
7
468822749
[0,1,0,0,7,7281,468822749]