A048570 - cp's OEIS frontend

A048570 Triangle T(n,k) = number of divisors of binomial(n,k).

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

[1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 4, 3, 1, 1, 2, 4, 4, 2, 1, 1, 4, 4, 6, 4, 4, 1, 1, 2, 4, 4, 4, 4, 2, 1, 1, 4, 6, 8, 8, 8, 6, 4, 1, 1, 3, 9, 12, 12, 12, 12, 9, 3, 1, 1, 4, 6, 16, 16, 18, 16, 16, 6, 4, 1, 1, 2, 4, 8, 16, 16, 16, 16, 8, 4, 2, 1, 1, 6, 8, 12, 12, 24, 24, 24]

cp's OEIS Frontend

A048570 Triangle T(n,k) = number of divisors of binomial(n,k).

Table of values

List of values

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

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

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