A253634 - cp's OEIS frontend

A253634 Decimal expansion of Sum_{n>=1} 1/A033286(n)^2.

n	a(n)
0	2
1	8
2	4
3	1
4	7
5	0
6	7
7	0
8	5
9	4
10	7
11	0
12	8
13	6
14	8
15	2
16	5
17	0
18	1
19	7
20	7
21	1
22	4

[2, 8, 4, 1, 7, 0, 7, 0, 5, 4, 7, 0, 8, 6, 8, 2, 5, 0, 1, 7, 7, 1, 4]