A227988 - cp's OEIS frontend

A227988 Decimal expansion of Sum_{n >= 1} sigma_1(n)/n!.

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

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

cp's OEIS Frontend

A227988 Decimal expansion of Sum_{n >= 1} sigma_1(n)/n!.

Table of values

List of values

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

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

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