A353379 - cp's OEIS frontend

A353379 Primepi-based variant of the arithmetic derivative applied to the prime shadow of n.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	4
7	1
8	3
9	2
10	4
11	1
12	7
13	1
14	4
15	4
16	4
17	1
18	7
19	1
20	7
21	4
22	4
23	1
24	11
25	2
26	4
27	3
28	7
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	12
37	1
38	4
39	4
40	11
41	1
42	12
43	1
44	7
45	7
46	4
47	1
48	15
49	2
50	7
51	4
52	7
53	1
54	11
55	4
56	11
57	4
58	4
59	1
60	20
61	1
62	4
63	7
64	6
65	4
66	12
67	1
68	7
69	4
70	12
71	1
72	19
73	1
74	4
75	7
76	7
77	4
78	12
79	1
80	15
81	4
82	4
83	1
84	20
85	4
86	4
87	4
88	11
89	1
90	20
91	4
92	7
93	4
94	4
95	4
96	21
97	1
98	7
99	7

[0, 1, 1, 2, 1, 4, 1, 3, 2, 4, 1, 7, 1, 4, 4, 4, 1, 7, 1, 7, 4, 4, 1, 11, 2, 4, 3, 7, 1, 12, 1, 5, 4, 4, 4, 12, 1, 4, 4, 11, 1, 12, 1, 7, 7, 4, 1, 15, 2, 7, 4, 7, 1, 11, 4, 11, 4, 4, 1, 20, 1, 4, 7, 6, 4, 12, 1, 7, 4, 12, 1, 19, 1, 4, 7, 7, 4, 12, 1, 15, 4, 4, 1, 20, 4, 4, 4, 11, 1, 20, 4, 7, 4, 4, 4, 21, 1, 7, 7]

cp's OEIS Frontend

A353379 Primepi-based variant of the arithmetic derivative applied to the prime shadow of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	4
7	1
8	3
9	2
10	4
11	1
12	7
13	1
14	4
15	4
16	4
17	1
18	7
19	1
20	7
21	4
22	4
23	1
24	11
25	2
26	4
27	3
28	7
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	12
37	1
38	4
39	4
40	11
41	1
42	12
43	1
44	7
45	7
46	4
47	1
48	15
49	2
50	7
51	4
52	7
53	1
54	11
55	4
56	11
57	4
58	4
59	1
60	20
61	1
62	4
63	7
64	6
65	4
66	12
67	1
68	7
69	4
70	12
71	1
72	19
73	1
74	4
75	7
76	7
77	4
78	12
79	1
80	15
81	4
82	4
83	1
84	20
85	4
86	4
87	4
88	11
89	1
90	20
91	4
92	7
93	4
94	4
95	4
96	21
97	1
98	7
99	7

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	4
7	1
8	3
9	2
10	4
11	1
12	7
13	1
14	4
15	4
16	4
17	1
18	7
19	1
20	7
21	4
22	4
23	1
24	11
25	2
26	4
27	3
28	7
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	12
37	1
38	4
39	4
40	11
41	1
42	12
43	1
44	7
45	7
46	4
47	1
48	15
49	2
50	7
51	4
52	7
53	1
54	11
55	4
56	11
57	4
58	4
59	1
60	20
61	1
62	4
63	7
64	6
65	4
66	12
67	1
68	7
69	4
70	12
71	1
72	19
73	1
74	4
75	7
76	7
77	4
78	12
79	1
80	15
81	4
82	4
83	1
84	20
85	4
86	4
87	4
88	11
89	1
90	20
91	4
92	7
93	4
94	4
95	4
96	21
97	1
98	7
99	7

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	4
7	1
8	3
9	2
10	4
11	1
12	7
13	1
14	4
15	4
16	4
17	1
18	7
19	1
20	7
21	4
22	4
23	1
24	11
25	2
26	4
27	3
28	7
29	1
30	12
31	1
32	5
33	4
34	4
35	4
36	12
37	1
38	4
39	4
40	11
41	1
42	12
43	1
44	7
45	7
46	4
47	1
48	15
49	2
50	7
51	4
52	7
53	1
54	11
55	4
56	11
57	4
58	4
59	1
60	20
61	1
62	4
63	7
64	6
65	4
66	12
67	1
68	7
69	4
70	12
71	1
72	19
73	1
74	4
75	7
76	7
77	4
78	12
79	1
80	15
81	4
82	4
83	1
84	20
85	4
86	4
87	4
88	11
89	1
90	20
91	4
92	7
93	4
94	4
95	4
96	21
97	1
98	7
99	7