A162247 - cp's OEIS frontend

A162247 Irregular triangle in which row n lists all factorizations of n, sorted by the number of factors in each factorization.

n	a(n)
1	1
2	2
3	3
4	4
5	2
6	2
7	5
8	6
9	2
10	3
11	7
12	8
13	2
14	4
15	2
16	2
17	2
18	9
19	3
20	3
21	10
22	2
23	5
24	11
25	12
26	2
27	6
28	3
29	4
30	2
31	2
32	3
33	13
34	14
35	2
36	7
37	15
38	3
39	5
40	16
41	2
42	8
43	4
44	4
45	2
46	2
47	4
48	2
49	2
50	2
51	2
52	17
53	18
54	2
55	9
56	3
57	6
58	2
59	3
60	3
61	19
62	20
63	2
64	10
65	4
66	5
67	2
68	2
69	5
70	21
71	3
72	7
73	22
74	2
75	11
76	23
77	24
78	2
79	12
80	3
81	8
82	4
83	6
84	2
85	2
86	6
87	2
88	3
89	4
90	2
91	2
92	2
93	3
94	25
95	5
96	5

[1, 2, 3, 4, 2, 2, 5, 6, 2, 3, 7, 8, 2, 4, 2, 2, 2, 9, 3, 3, 10, 2, 5, 11, 12, 2, 6, 3, 4, 2, 2, 3, 13, 14, 2, 7, 15, 3, 5, 16, 2, 8, 4, 4, 2, 2, 4, 2, 2, 2, 2, 17, 18, 2, 9, 3, 6, 2, 3, 3, 19, 20, 2, 10, 4, 5, 2, 2, 5, 21, 3, 7, 22, 2, 11, 23, 24, 2, 12, 3, 8, 4, 6, 2, 2, 6, 2, 3, 4, 2, 2, 2, 3, 25, 5, 5]

cp's OEIS Frontend

A162247 Irregular triangle in which row n lists all factorizations of n, sorted by the number of factors in each factorization.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	2
6	2
7	5
8	6
9	2
10	3
11	7
12	8
13	2
14	4
15	2
16	2
17	2
18	9
19	3
20	3
21	10
22	2
23	5
24	11
25	12
26	2
27	6
28	3
29	4
30	2
31	2
32	3
33	13
34	14
35	2
36	7
37	15
38	3
39	5
40	16
41	2
42	8
43	4
44	4
45	2
46	2
47	4
48	2
49	2
50	2
51	2
52	17
53	18
54	2
55	9
56	3
57	6
58	2
59	3
60	3
61	19
62	20
63	2
64	10
65	4
66	5
67	2
68	2
69	5
70	21
71	3
72	7
73	22
74	2
75	11
76	23
77	24
78	2
79	12
80	3
81	8
82	4
83	6
84	2
85	2
86	6
87	2
88	3
89	4
90	2
91	2
92	2
93	3
94	25
95	5
96	5

n	a(n)
1	1
2	2
3	3
4	4
5	2
6	2
7	5
8	6
9	2
10	3
11	7
12	8
13	2
14	4
15	2
16	2
17	2
18	9
19	3
20	3
21	10
22	2
23	5
24	11
25	12
26	2
27	6
28	3
29	4
30	2
31	2
32	3
33	13
34	14
35	2
36	7
37	15
38	3
39	5
40	16
41	2
42	8
43	4
44	4
45	2
46	2
47	4
48	2
49	2
50	2
51	2
52	17
53	18
54	2
55	9
56	3
57	6
58	2
59	3
60	3
61	19
62	20
63	2
64	10
65	4
66	5
67	2
68	2
69	5
70	21
71	3
72	7
73	22
74	2
75	11
76	23
77	24
78	2
79	12
80	3
81	8
82	4
83	6
84	2
85	2
86	6
87	2
88	3
89	4
90	2
91	2
92	2
93	3
94	25
95	5
96	5

n	a(n)
1	1
2	2
3	3
4	4
5	2
6	2
7	5
8	6
9	2
10	3
11	7
12	8
13	2
14	4
15	2
16	2
17	2
18	9
19	3
20	3
21	10
22	2
23	5
24	11
25	12
26	2
27	6
28	3
29	4
30	2
31	2
32	3
33	13
34	14
35	2
36	7
37	15
38	3
39	5
40	16
41	2
42	8
43	4
44	4
45	2
46	2
47	4
48	2
49	2
50	2
51	2
52	17
53	18
54	2
55	9
56	3
57	6
58	2
59	3
60	3
61	19
62	20
63	2
64	10
65	4
66	5
67	2
68	2
69	5
70	21
71	3
72	7
73	22
74	2
75	11
76	23
77	24
78	2
79	12
80	3
81	8
82	4
83	6
84	2
85	2
86	6
87	2
88	3
89	4
90	2
91	2
92	2
93	3
94	25
95	5
96	5