A248721 - cp's OEIS frontend

A248721 Decimal expansion of Sum_{k>=1} 1/(4^k - 1).

n	a(n)
0	4
1	2
2	1
3	0
4	9
5	7
6	6
7	8
8	6
9	0
10	3
11	3
12	4
13	2
14	3
15	7
16	7
17	7
18	2
19	9
20	5
21	9
22	9
23	0
24	8
25	8
26	7
27	9
28	6
29	7
30	7
31	1
32	3
33	0
34	4
35	8
36	9
37	6
38	1
39	4
40	4
41	1
42	3
43	3
44	6
45	3
46	2
47	4
48	1
49	1
50	5
51	4
52	0
53	4
54	6
55	0
56	5
57	9
58	2
59	0
60	7
61	9
62	6
63	7
64	1
65	2
66	7
67	7
68	1
69	3
70	7
71	0
72	4
73	8
74	8
75	7
76	3
77	9
78	8
79	0
80	2
81	7
82	5
83	1
84	9
85	0
86	3
87	6
88	8
89	4
90	7
91	5
92	8
93	6
94	5
95	0
96	7
97	9
98	5
99	3
100	9
101	2
102	8
103	4
104	5

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

cp's OEIS Frontend

A248721 Decimal expansion of Sum_{k>=1} 1/(4^k - 1).

Table of values

List of values

n	a(n)
0	4
1	2
2	1
3	0
4	9
5	7
6	6
7	8
8	6
9	0
10	3
11	3
12	4
13	2
14	3
15	7
16	7
17	7
18	2
19	9
20	5
21	9
22	9
23	0
24	8
25	8
26	7
27	9
28	6
29	7
30	7
31	1
32	3
33	0
34	4
35	8
36	9
37	6
38	1
39	4
40	4
41	1
42	3
43	3
44	6
45	3
46	2
47	4
48	1
49	1
50	5
51	4
52	0
53	4
54	6
55	0
56	5
57	9
58	2
59	0
60	7
61	9
62	6
63	7
64	1
65	2
66	7
67	7
68	1
69	3
70	7
71	0
72	4
73	8
74	8
75	7
76	3
77	9
78	8
79	0
80	2
81	7
82	5
83	1
84	9
85	0
86	3
87	6
88	8
89	4
90	7
91	5
92	8
93	6
94	5
95	0
96	7
97	9
98	5
99	3
100	9
101	2
102	8
103	4
104	5

n	a(n)
0	4
1	2
2	1
3	0
4	9
5	7
6	6
7	8
8	6
9	0
10	3
11	3
12	4
13	2
14	3
15	7
16	7
17	7
18	2
19	9
20	5
21	9
22	9
23	0
24	8
25	8
26	7
27	9
28	6
29	7
30	7
31	1
32	3
33	0
34	4
35	8
36	9
37	6
38	1
39	4
40	4
41	1
42	3
43	3
44	6
45	3
46	2
47	4
48	1
49	1
50	5
51	4
52	0
53	4
54	6
55	0
56	5
57	9
58	2
59	0
60	7
61	9
62	6
63	7
64	1
65	2
66	7
67	7
68	1
69	3
70	7
71	0
72	4
73	8
74	8
75	7
76	3
77	9
78	8
79	0
80	2
81	7
82	5
83	1
84	9
85	0
86	3
87	6
88	8
89	4
90	7
91	5
92	8
93	6
94	5
95	0
96	7
97	9
98	5
99	3
100	9
101	2
102	8
103	4
104	5

n	a(n)
0	4
1	2
2	1
3	0
4	9
5	7
6	6
7	8
8	6
9	0
10	3
11	3
12	4
13	2
14	3
15	7
16	7
17	7
18	2
19	9
20	5
21	9
22	9
23	0
24	8
25	8
26	7
27	9
28	6
29	7
30	7
31	1
32	3
33	0
34	4
35	8
36	9
37	6
38	1
39	4
40	4
41	1
42	3
43	3
44	6
45	3
46	2
47	4
48	1
49	1
50	5
51	4
52	0
53	4
54	6
55	0
56	5
57	9
58	2
59	0
60	7
61	9
62	6
63	7
64	1
65	2
66	7
67	7
68	1
69	3
70	7
71	0
72	4
73	8
74	8
75	7
76	3
77	9
78	8
79	0
80	2
81	7
82	5
83	1
84	9
85	0
86	3
87	6
88	8
89	4
90	7
91	5
92	8
93	6
94	5
95	0
96	7
97	9
98	5
99	3
100	9
101	2
102	8
103	4
104	5