A344758 - cp's OEIS frontend

A344758 Smallest divisor d of n for which A011772(d) = A011772(n), where A011772(n) is the smallest number m such that m(m+1)/2 is divisible by n.

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

[1, 2, 3, 4, 5, 2, 7, 8, 9, 5, 11, 12, 13, 14, 15, 16, 17, 9, 19, 20, 7, 22, 23, 8, 25, 13, 27, 4, 29, 30, 31, 32, 33, 17, 35, 9, 37, 38, 13, 8, 41, 42, 43, 44, 45, 46, 47, 48, 49, 25, 51, 52, 53, 54, 11, 56, 19, 29, 59, 20, 61, 62, 63, 64, 65, 22, 67, 17, 69, 70, 71, 72, 73, 37, 25, 76, 77, 13, 79, 80, 81, 41, 83]

cp's OEIS Frontend

A344758 Smallest divisor d of n for which A011772(d) = A011772(n), where A011772(n) is the smallest number m such that m(m+1)/2 is divisible by n.

Table of values

List of values

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

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

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