A354166 - cp's OEIS frontend

A354166 Number of nonprimes among first n terms of A090252.

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

[1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 13, 13, 13, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 17]

cp's OEIS Frontend

A354166 Number of nonprimes among first n terms of A090252.

Table of values

List of values

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

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

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