A303945 - cp's OEIS frontend

A303945 Triangle whose n-th row lists the multiset of prime indices of the n-th number that is not a perfect power A007916(n).

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

[1, 2, 3, 1, 2, 4, 1, 3, 5, 1, 1, 2, 6, 1, 4, 2, 3, 7, 1, 2, 2, 8, 1, 1, 3, 2, 4, 1, 5, 9, 1, 1, 1, 2, 1, 6, 1, 1, 4, 10, 1, 2, 3, 11, 2, 5, 1, 7, 3, 4, 12, 1, 8, 2, 6, 1, 1, 1, 3, 13, 1, 2, 4, 14, 1, 1, 5, 2, 2, 3, 1, 9, 15, 1, 1, 1, 1, 2, 1, 3, 3, 2, 7, 1, 1]

cp's OEIS Frontend

A303945 Triangle whose n-th row lists the multiset of prime indices of the n-th number that is not a perfect power A007916(n).

Table of values

List of values

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

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

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