A344005 - cp's OEIS frontend

A344005 a(n) = smallest positive m such that n divides the oblong number m*(m+1).

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

[1, 1, 2, 3, 4, 2, 6, 7, 8, 4, 10, 3, 12, 6, 5, 15, 16, 8, 18, 4, 6, 10, 22, 8, 24, 12, 26, 7, 28, 5, 30, 31, 11, 16, 14, 8, 36, 18, 12, 15, 40, 6, 42, 11, 9, 22, 46, 15, 48, 24, 17, 12, 52, 26, 10, 7, 18, 28, 58, 15, 60, 30, 27, 63, 25, 11, 66, 16, 23, 14, 70, 8, 72, 36, 24, 19, 21]

cp's OEIS Frontend

A344005 a(n) = smallest positive m such that n divides the oblong number m*(m+1).

Table of values

List of values

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

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

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