A205131 - cp's OEIS frontend

A205131 The index j such that n divides s(k)-s(j), where k is the least index (A205130) for which such j exists, and s(k)=2*k^2-k, the k-th hexagonal number.

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	1
9	2
10	3
11	2
12	2
13	3
14	1
15	3
16	1
17	4
18	1
19	4
20	2
21	5
22	2
23	5
24	3
25	6
26	9
27	1
28	7
29	7
30	3
31	7
32	1
33	8
34	12
35	3
36	5
37	9
38	4
39	2
40	5
41	10
42	6
43	10
44	1
45	1
46	5
47	11
48	2
49	2
50	4
51	3
52	8
53	13
54	6
55	6
56	5
57	2
58	21
59	14
60	2

[1, 1, 2, 1, 1, 3, 1, 1, 2, 3, 2, 2, 3, 1, 3, 1, 4, 1, 4, 2, 5, 2, 5, 3, 6, 9, 1, 7, 7, 3, 7, 1, 8, 12, 3, 5, 9, 4, 2, 5, 10, 6, 10, 1, 1, 5, 11, 2, 2, 4, 3, 8, 13, 6, 6, 5, 2, 21, 14, 2]

cp's OEIS Frontend

A205131 The index j such that n divides s(k)-s(j), where k is the least index (A205130) for which such j exists, and s(k)=2*k^2-k, the k-th hexagonal number.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	1
9	2
10	3
11	2
12	2
13	3
14	1
15	3
16	1
17	4
18	1
19	4
20	2
21	5
22	2
23	5
24	3
25	6
26	9
27	1
28	7
29	7
30	3
31	7
32	1
33	8
34	12
35	3
36	5
37	9
38	4
39	2
40	5
41	10
42	6
43	10
44	1
45	1
46	5
47	11
48	2
49	2
50	4
51	3
52	8
53	13
54	6
55	6
56	5
57	2
58	21
59	14
60	2

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	1
9	2
10	3
11	2
12	2
13	3
14	1
15	3
16	1
17	4
18	1
19	4
20	2
21	5
22	2
23	5
24	3
25	6
26	9
27	1
28	7
29	7
30	3
31	7
32	1
33	8
34	12
35	3
36	5
37	9
38	4
39	2
40	5
41	10
42	6
43	10
44	1
45	1
46	5
47	11
48	2
49	2
50	4
51	3
52	8
53	13
54	6
55	6
56	5
57	2
58	21
59	14
60	2

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	3
7	1
8	1
9	2
10	3
11	2
12	2
13	3
14	1
15	3
16	1
17	4
18	1
19	4
20	2
21	5
22	2
23	5
24	3
25	6
26	9
27	1
28	7
29	7
30	3
31	7
32	1
33	8
34	12
35	3
36	5
37	9
38	4
39	2
40	5
41	10
42	6
43	10
44	1
45	1
46	5
47	11
48	2
49	2
50	4
51	3
52	8
53	13
54	6
55	6
56	5
57	2
58	21
59	14
60	2