A384460 - cp's OEIS frontend

A384460 Decimal expansion of Sum_{k>=1} (-1)^(k+1)*H(k)^2/k, where H(k) = A001008(k)/A002805(k) is the k-th harmonic number.

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

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

cp's OEIS Frontend

A384460 Decimal expansion of Sum_{k>=1} (-1)^(k+1)*H(k)^2/k, where H(k) = A001008(k)/A002805(k) is the k-th harmonic number.

Table of values

List of values

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

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

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