A136568 - cp's OEIS frontend

A136568 Irregular triangle read by rows: row n contains the distinct values (in numerical order) making up the nonzero exponents in the prime factorization of n. (Row 1 = (0).).

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

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

cp's OEIS Frontend

A136568 Irregular triangle read by rows: row n contains the distinct values (in numerical order) making up the nonzero exponents in the prime factorization of n. (Row 1 = (0).).

Table of values

List of values

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

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

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