A354875 - cp's OEIS frontend

A354875 Dirichlet inverse of A344005, the smallest positive m such that n divides the oblong number m*(m+1).

n	a(n)
1	1
2	-1
3	-2
4	-2
5	-4
6	2
7	-6
8	-2
9	-4
10	4
11	-10
12	7
13	-12
14	6
15	11
16	0
17	-16
18	4
19	-18
20	16
21	18
22	10
23	-22
24	4
25	-8
26	12
27	-2
28	23
29	-28
30	-11
31	-30
32	4
33	29
34	16
35	34
36	12
37	-36
38	18
39	36
40	5
41	-40
42	-18
43	-42
44	39
45	27
46	22
47	-46
48	-6
49	-12
50	8
51	47
52	48
53	-52
54	2
55	70
56	25
57	54
58	28
59	-58
60	-78
61	-60
62	30
63	21
64	8
65	71
66	-29
67	-66
68	64
69	65
70	-34
71	-70
72	24
73	-72
74	36
75	16
76	71
77	99

[1, -1, -2, -2, -4, 2, -6, -2, -4, 4, -10, 7, -12, 6, 11, 0, -16, 4, -18, 16, 18, 10, -22, 4, -8, 12, -2, 23, -28, -11, -30, 4, 29, 16, 34, 12, -36, 18, 36, 5, -40, -18, -42, 39, 27, 22, -46, -6, -12, 8, 47, 48, -52, 2, 70, 25, 54, 28, -58, -78, -60, 30, 21, 8, 71, -29, -66, 64, 65, -34, -70, 24, -72, 36, 16, 71, 99]

cp's OEIS Frontend

A354875 Dirichlet inverse of A344005, the 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	-2
5	-4
6	2
7	-6
8	-2
9	-4
10	4
11	-10
12	7
13	-12
14	6
15	11
16	0
17	-16
18	4
19	-18
20	16
21	18
22	10
23	-22
24	4
25	-8
26	12
27	-2
28	23
29	-28
30	-11
31	-30
32	4
33	29
34	16
35	34
36	12
37	-36
38	18
39	36
40	5
41	-40
42	-18
43	-42
44	39
45	27
46	22
47	-46
48	-6
49	-12
50	8
51	47
52	48
53	-52
54	2
55	70
56	25
57	54
58	28
59	-58
60	-78
61	-60
62	30
63	21
64	8
65	71
66	-29
67	-66
68	64
69	65
70	-34
71	-70
72	24
73	-72
74	36
75	16
76	71
77	99

n	a(n)
1	1
2	-1
3	-2
4	-2
5	-4
6	2
7	-6
8	-2
9	-4
10	4
11	-10
12	7
13	-12
14	6
15	11
16	0
17	-16
18	4
19	-18
20	16
21	18
22	10
23	-22
24	4
25	-8
26	12
27	-2
28	23
29	-28
30	-11
31	-30
32	4
33	29
34	16
35	34
36	12
37	-36
38	18
39	36
40	5
41	-40
42	-18
43	-42
44	39
45	27
46	22
47	-46
48	-6
49	-12
50	8
51	47
52	48
53	-52
54	2
55	70
56	25
57	54
58	28
59	-58
60	-78
61	-60
62	30
63	21
64	8
65	71
66	-29
67	-66
68	64
69	65
70	-34
71	-70
72	24
73	-72
74	36
75	16
76	71
77	99

n	a(n)
1	1
2	-1
3	-2
4	-2
5	-4
6	2
7	-6
8	-2
9	-4
10	4
11	-10
12	7
13	-12
14	6
15	11
16	0
17	-16
18	4
19	-18
20	16
21	18
22	10
23	-22
24	4
25	-8
26	12
27	-2
28	23
29	-28
30	-11
31	-30
32	4
33	29
34	16
35	34
36	12
37	-36
38	18
39	36
40	5
41	-40
42	-18
43	-42
44	39
45	27
46	22
47	-46
48	-6
49	-12
50	8
51	47
52	48
53	-52
54	2
55	70
56	25
57	54
58	28
59	-58
60	-78
61	-60
62	30
63	21
64	8
65	71
66	-29
67	-66
68	64
69	65
70	-34
71	-70
72	24
73	-72
74	36
75	16
76	71
77	99