A251683 - cp's OEIS frontend

A251683 Irregular triangular array: T(n,k) is the number of ordered factorizations of n with exactly k factors, n >= 1, 1 <= k <= A086436(n).

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

[1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 2, 1, 2, 1, 3, 3, 1, 1, 1, 4, 3, 1, 1, 4, 3, 1, 2, 1, 2, 1, 1, 6, 9, 4, 1, 1, 1, 2, 1, 2, 1, 1, 4, 3, 1, 1, 6, 6, 1, 1, 4, 6, 4, 1, 1, 2, 1, 2, 1, 2, 1, 7, 12, 6, 1, 1, 2, 1, 2, 1, 6, 9, 4]

cp's OEIS Frontend

A251683 Irregular triangular array: T(n,k) is the number of ordered factorizations of n with exactly k factors, n >= 1, 1 <= k <= A086436(n).

Table of values

List of values

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

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

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