A225399 - cp's OEIS frontend

A225399 Number of nontrivial triangular numbers dividing triangular(n).

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	2
10	0
11	2
12	2
13	0
14	3
15	4
16	0
17	1
18	1
19	1
20	6
21	2
22	0
23	2
24	4
25	0
26	1
27	3
28	0
29	2
30	2
31	0
32	3
33	1
34	0
35	8
36	2
37	0
38	1
39	5
40	1
41	2
42	2
43	0
44	7
45	3
46	0
47	2
48	4
49	0
50	2
51	3
52	0
53	1
54	4
55	3
56	4
57	1
58	0
59	4
60	4
61	0
62	2
63	5
64	1
65	3
66	1
67	0
68	2
69	4
70	0
71	3
72	3
73	0
74	2
75	5
76	0
77	4
78	1
79	1
80	7
81	1
82	0
83	3
84	8
85	0
86	1

[0, 0, 0, 1, 0, 1, 1, 0, 2, 2, 0, 2, 2, 0, 3, 4, 0, 1, 1, 1, 6, 2, 0, 2, 4, 0, 1, 3, 0, 2, 2, 0, 3, 1, 0, 8, 2, 0, 1, 5, 1, 2, 2, 0, 7, 3, 0, 2, 4, 0, 2, 3, 0, 1, 4, 3, 4, 1, 0, 4, 4, 0, 2, 5, 1, 3, 1, 0, 2, 4, 0, 3, 3, 0, 2, 5, 0, 4, 1, 1, 7, 1, 0, 3, 8, 0, 1]

cp's OEIS Frontend

A225399 Number of nontrivial triangular numbers dividing triangular(n).

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	2
10	0
11	2
12	2
13	0
14	3
15	4
16	0
17	1
18	1
19	1
20	6
21	2
22	0
23	2
24	4
25	0
26	1
27	3
28	0
29	2
30	2
31	0
32	3
33	1
34	0
35	8
36	2
37	0
38	1
39	5
40	1
41	2
42	2
43	0
44	7
45	3
46	0
47	2
48	4
49	0
50	2
51	3
52	0
53	1
54	4
55	3
56	4
57	1
58	0
59	4
60	4
61	0
62	2
63	5
64	1
65	3
66	1
67	0
68	2
69	4
70	0
71	3
72	3
73	0
74	2
75	5
76	0
77	4
78	1
79	1
80	7
81	1
82	0
83	3
84	8
85	0
86	1

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	2
10	0
11	2
12	2
13	0
14	3
15	4
16	0
17	1
18	1
19	1
20	6
21	2
22	0
23	2
24	4
25	0
26	1
27	3
28	0
29	2
30	2
31	0
32	3
33	1
34	0
35	8
36	2
37	0
38	1
39	5
40	1
41	2
42	2
43	0
44	7
45	3
46	0
47	2
48	4
49	0
50	2
51	3
52	0
53	1
54	4
55	3
56	4
57	1
58	0
59	4
60	4
61	0
62	2
63	5
64	1
65	3
66	1
67	0
68	2
69	4
70	0
71	3
72	3
73	0
74	2
75	5
76	0
77	4
78	1
79	1
80	7
81	1
82	0
83	3
84	8
85	0
86	1

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	2
10	0
11	2
12	2
13	0
14	3
15	4
16	0
17	1
18	1
19	1
20	6
21	2
22	0
23	2
24	4
25	0
26	1
27	3
28	0
29	2
30	2
31	0
32	3
33	1
34	0
35	8
36	2
37	0
38	1
39	5
40	1
41	2
42	2
43	0
44	7
45	3
46	0
47	2
48	4
49	0
50	2
51	3
52	0
53	1
54	4
55	3
56	4
57	1
58	0
59	4
60	4
61	0
62	2
63	5
64	1
65	3
66	1
67	0
68	2
69	4
70	0
71	3
72	3
73	0
74	2
75	5
76	0
77	4
78	1
79	1
80	7
81	1
82	0
83	3
84	8
85	0
86	1