A371133 - cp's OEIS frontend

A371133 Decimal expansion of Sum_{n>=1} d(n)/n!, where d(n) is the number of divisors of n.

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

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

cp's OEIS Frontend

A371133 Decimal expansion of Sum_{n>=1} d(n)/n!, where d(n) is the number of divisors of n.

Table of values

List of values

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

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

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