A256987 - cp's OEIS frontend

A256987 Decimal expansion of Sum_{k>=1} H(k)*H(k,2)/k^2 where H(k) is the k-th harmonic number and H(k,2) the k-th harmonic number of order 2.

n	a(n)
1	3
2	0
3	1
4	4
5	2
6	3
7	2
8	1
9	0
10	5
11	4
12	4
13	0
14	6
15	6
16	6
17	0
18	4
19	4
20	5
21	2
22	8
23	4
24	5
25	0
26	9
27	2
28	7
29	9
30	4
31	2
32	1
33	5
34	9
35	7
36	4
37	0
38	1
39	3
40	9
41	2
42	3
43	2
44	3
45	8
46	6
47	1
48	6
49	2
50	0
51	4
52	7
53	0
54	2
55	0
56	6
57	7
58	0
59	0
60	1
61	4
62	9
63	5
64	4
65	9
66	5
67	8
68	5
69	1
70	8
71	6
72	2
73	3
74	9
75	3
76	2
77	8
78	8
79	5
80	6
81	9
82	2
83	2
84	6
85	2
86	4
87	2
88	7
89	4
90	7
91	9
92	0
93	7
94	8
95	8
96	8
97	2
98	9
99	4
100	3
101	7
102	5
103	1
104	7
105	1

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

cp's OEIS Frontend

A256987 Decimal expansion of Sum_{k>=1} H(k)*H(k,2)/k^2 where H(k) is the k-th harmonic number and H(k,2) the k-th harmonic number of order 2.

Table of values

List of values

n	a(n)
1	3
2	0
3	1
4	4
5	2
6	3
7	2
8	1
9	0
10	5
11	4
12	4
13	0
14	6
15	6
16	6
17	0
18	4
19	4
20	5
21	2
22	8
23	4
24	5
25	0
26	9
27	2
28	7
29	9
30	4
31	2
32	1
33	5
34	9
35	7
36	4
37	0
38	1
39	3
40	9
41	2
42	3
43	2
44	3
45	8
46	6
47	1
48	6
49	2
50	0
51	4
52	7
53	0
54	2
55	0
56	6
57	7
58	0
59	0
60	1
61	4
62	9
63	5
64	4
65	9
66	5
67	8
68	5
69	1
70	8
71	6
72	2
73	3
74	9
75	3
76	2
77	8
78	8
79	5
80	6
81	9
82	2
83	2
84	6
85	2
86	4
87	2
88	7
89	4
90	7
91	9
92	0
93	7
94	8
95	8
96	8
97	2
98	9
99	4
100	3
101	7
102	5
103	1
104	7
105	1

n	a(n)
1	3
2	0
3	1
4	4
5	2
6	3
7	2
8	1
9	0
10	5
11	4
12	4
13	0
14	6
15	6
16	6
17	0
18	4
19	4
20	5
21	2
22	8
23	4
24	5
25	0
26	9
27	2
28	7
29	9
30	4
31	2
32	1
33	5
34	9
35	7
36	4
37	0
38	1
39	3
40	9
41	2
42	3
43	2
44	3
45	8
46	6
47	1
48	6
49	2
50	0
51	4
52	7
53	0
54	2
55	0
56	6
57	7
58	0
59	0
60	1
61	4
62	9
63	5
64	4
65	9
66	5
67	8
68	5
69	1
70	8
71	6
72	2
73	3
74	9
75	3
76	2
77	8
78	8
79	5
80	6
81	9
82	2
83	2
84	6
85	2
86	4
87	2
88	7
89	4
90	7
91	9
92	0
93	7
94	8
95	8
96	8
97	2
98	9
99	4
100	3
101	7
102	5
103	1
104	7
105	1

n	a(n)
1	3
2	0
3	1
4	4
5	2
6	3
7	2
8	1
9	0
10	5
11	4
12	4
13	0
14	6
15	6
16	6
17	0
18	4
19	4
20	5
21	2
22	8
23	4
24	5
25	0
26	9
27	2
28	7
29	9
30	4
31	2
32	1
33	5
34	9
35	7
36	4
37	0
38	1
39	3
40	9
41	2
42	3
43	2
44	3
45	8
46	6
47	1
48	6
49	2
50	0
51	4
52	7
53	0
54	2
55	0
56	6
57	7
58	0
59	0
60	1
61	4
62	9
63	5
64	4
65	9
66	5
67	8
68	5
69	1
70	8
71	6
72	2
73	3
74	9
75	3
76	2
77	8
78	8
79	5
80	6
81	9
82	2
83	2
84	6
85	2
86	4
87	2
88	7
89	4
90	7
91	9
92	0
93	7
94	8
95	8
96	8
97	2
98	9
99	4
100	3
101	7
102	5
103	1
104	7
105	1