A205001 - cp's OEIS frontend

A205001 Least k such that n divides the k-th difference between distinct triangular numbers.

n	a(n)
1	1
2	1
3	3
4	6
5	2
6	8
7	5
8	28
9	4
10	11
11	14
12	8
13	20
14	7
15	13
16	120
17	35
18	12
19	44
20	11
21	26
22	18
23	65
24	34
25	17
26	25
27	16
28	49
29	104
30	24
31	119
32	496
33	23
34	42
35	22
36	58
37	170
38	52
39	31
40	41
41	209
42	30
43	230
44	29
45	40
46	75
47	275
48	134
49	39
50	62
51	50
52	38
53	350
54	37
55	74
56	49
57	61
58	117
59	434
60	48

[1, 1, 3, 6, 2, 8, 5, 28, 4, 11, 14, 8, 20, 7, 13, 120, 35, 12, 44, 11, 26, 18, 65, 34, 17, 25, 16, 49, 104, 24, 119, 496, 23, 42, 22, 58, 170, 52, 31, 41, 209, 30, 230, 29, 40, 75, 275, 134, 39, 62, 50, 38, 350, 37, 74, 49, 61, 117, 434, 48]

cp's OEIS Frontend

A205001 Least k such that n divides the k-th difference between distinct triangular numbers.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	6
5	2
6	8
7	5
8	28
9	4
10	11
11	14
12	8
13	20
14	7
15	13
16	120
17	35
18	12
19	44
20	11
21	26
22	18
23	65
24	34
25	17
26	25
27	16
28	49
29	104
30	24
31	119
32	496
33	23
34	42
35	22
36	58
37	170
38	52
39	31
40	41
41	209
42	30
43	230
44	29
45	40
46	75
47	275
48	134
49	39
50	62
51	50
52	38
53	350
54	37
55	74
56	49
57	61
58	117
59	434
60	48

n	a(n)
1	1
2	1
3	3
4	6
5	2
6	8
7	5
8	28
9	4
10	11
11	14
12	8
13	20
14	7
15	13
16	120
17	35
18	12
19	44
20	11
21	26
22	18
23	65
24	34
25	17
26	25
27	16
28	49
29	104
30	24
31	119
32	496
33	23
34	42
35	22
36	58
37	170
38	52
39	31
40	41
41	209
42	30
43	230
44	29
45	40
46	75
47	275
48	134
49	39
50	62
51	50
52	38
53	350
54	37
55	74
56	49
57	61
58	117
59	434
60	48

n	a(n)
1	1
2	1
3	3
4	6
5	2
6	8
7	5
8	28
9	4
10	11
11	14
12	8
13	20
14	7
15	13
16	120
17	35
18	12
19	44
20	11
21	26
22	18
23	65
24	34
25	17
26	25
27	16
28	49
29	104
30	24
31	119
32	496
33	23
34	42
35	22
36	58
37	170
38	52
39	31
40	41
41	209
42	30
43	230
44	29
45	40
46	75
47	275
48	134
49	39
50	62
51	50
52	38
53	350
54	37
55	74
56	49
57	61
58	117
59	434
60	48