From: Convolution identities for twisted Eisenstein series and twisted divisor functions
x
2
3
4
5
6
7
8
9
10
11
12
13
14
P 5 , x
18
40
75
126
196
288
405
550
726
936
1,183
1,470
P 5 , x ∗
198
560
1,210