A255685 - cp's OEIS frontend

A255685 Decimal expansion of the alternating double sum U(3,1) = Sum_{i>=2} (Sum_{j=1..i-1} (-1)^(i+j)/(i^3*j)) (negated).

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

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

cp's OEIS Frontend

A255685 Decimal expansion of the alternating double sum U(3,1) = Sum_{i>=2} (Sum_{j=1..i-1} (-1)^(i+j)/(i^3*j)) (negated).

Table of values

List of values

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

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

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