A258715 - cp's OEIS frontend

A258715 Decimal expansion of 2*Sum_{k>=0} 1/Product_{i=0..k} (2^(2^i) - 1).

n	a(n)
1	2
2	7
3	1
4	1
5	2
6	8
7	5
8	4
9	0
10	5
11	7
12	0
13	9
14	6
15	3
16	3
17	4
18	4
19	6
20	6
21	6
22	6
23	5
24	2
25	5
26	4
27	2
28	9
29	1
30	8
31	1
32	4
33	7
34	9
35	1
36	0
37	4
38	6
39	7
40	9
41	7
42	6
43	5
44	8
45	7
46	7
47	1
48	9
49	8
50	9
51	7
52	5
53	4
54	5
55	6
56	9
57	3
58	7
59	9
60	5
61	7
62	1
63	7
64	0
65	6
66	7
67	9
68	5
69	0
70	1
71	8
72	9
73	9
74	9
75	5
76	5
77	4
78	4
79	2
80	8

[2, 7, 1, 1, 2, 8, 5, 4, 0, 5, 7, 0, 9, 6, 3, 3, 4, 4, 6, 6, 6, 6, 5, 2, 5, 4, 2, 9, 1, 8, 1, 4, 7, 9, 1, 0, 4, 6, 7, 9, 7, 6, 5, 8, 7, 7, 1, 9, 8, 9, 7, 5, 4, 5, 6, 9, 3, 7, 9, 5, 7, 1, 7, 0, 6, 7, 9, 5, 0, 1, 8, 9, 9, 9, 5, 5, 4, 4, 2, 8]

cp's OEIS Frontend

A258715 Decimal expansion of 2*Sum_{k>=0} 1/Product_{i=0..k} (2^(2^i) - 1).

Table of values

List of values

n	a(n)
1	2
2	7
3	1
4	1
5	2
6	8
7	5
8	4
9	0
10	5
11	7
12	0
13	9
14	6
15	3
16	3
17	4
18	4
19	6
20	6
21	6
22	6
23	5
24	2
25	5
26	4
27	2
28	9
29	1
30	8
31	1
32	4
33	7
34	9
35	1
36	0
37	4
38	6
39	7
40	9
41	7
42	6
43	5
44	8
45	7
46	7
47	1
48	9
49	8
50	9
51	7
52	5
53	4
54	5
55	6
56	9
57	3
58	7
59	9
60	5
61	7
62	1
63	7
64	0
65	6
66	7
67	9
68	5
69	0
70	1
71	8
72	9
73	9
74	9
75	5
76	5
77	4
78	4
79	2
80	8

n	a(n)
1	2
2	7
3	1
4	1
5	2
6	8
7	5
8	4
9	0
10	5
11	7
12	0
13	9
14	6
15	3
16	3
17	4
18	4
19	6
20	6
21	6
22	6
23	5
24	2
25	5
26	4
27	2
28	9
29	1
30	8
31	1
32	4
33	7
34	9
35	1
36	0
37	4
38	6
39	7
40	9
41	7
42	6
43	5
44	8
45	7
46	7
47	1
48	9
49	8
50	9
51	7
52	5
53	4
54	5
55	6
56	9
57	3
58	7
59	9
60	5
61	7
62	1
63	7
64	0
65	6
66	7
67	9
68	5
69	0
70	1
71	8
72	9
73	9
74	9
75	5
76	5
77	4
78	4
79	2
80	8

n	a(n)
1	2
2	7
3	1
4	1
5	2
6	8
7	5
8	4
9	0
10	5
11	7
12	0
13	9
14	6
15	3
16	3
17	4
18	4
19	6
20	6
21	6
22	6
23	5
24	2
25	5
26	4
27	2
28	9
29	1
30	8
31	1
32	4
33	7
34	9
35	1
36	0
37	4
38	6
39	7
40	9
41	7
42	6
43	5
44	8
45	7
46	7
47	1
48	9
49	8
50	9
51	7
52	5
53	4
54	5
55	6
56	9
57	3
58	7
59	9
60	5
61	7
62	1
63	7
64	0
65	6
66	7
67	9
68	5
69	0
70	1
71	8
72	9
73	9
74	9
75	5
76	5
77	4
78	4
79	2
80	8