A337363 - cp's OEIS frontend

A337363 a(n) = Sum_{d1|n, d2|n, d1 where [ ] is the Iverson bracket.

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

[0, 0, 1, 2, 1, 4, 1, 5, 3, 5, 1, 12, 1, 5, 6, 9, 1, 13, 1, 13, 6, 5, 1, 25, 3, 5, 6, 14, 1, 25, 1, 14, 6, 5, 6, 33, 1, 5, 6, 26, 1, 25, 1, 14, 15, 5, 1, 42, 3, 14, 6, 14, 1, 26, 6, 26, 6, 5, 1, 61, 1, 5, 15, 20, 6, 26, 1, 14, 6, 27, 1, 62, 1, 5, 15, 14, 6, 26, 1, 43, 10, 5, 1, 62]

cp's OEIS Frontend

A337363 a(n) = Sum_{d1|n, d2|n, d1 where [ ] is the Iverson bracket.

Table of values

List of values

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

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

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