A246348 - cp's OEIS frontend

A246348 a(1)=1, a(p_n) = 1 + a(n), a(c_n) = 1 + a(n), where p_n = n-th prime = A000040(n), c_n = n-th composite number = A002808(n); Also binary width of terms of A135141.

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

[1, 2, 3, 2, 4, 3, 3, 4, 3, 5, 5, 4, 4, 4, 5, 4, 4, 6, 5, 6, 5, 5, 4, 5, 6, 5, 5, 7, 6, 6, 6, 7, 6, 6, 5, 6, 5, 7, 6, 6, 5, 8, 5, 7, 7, 7, 6, 8, 7, 7, 6, 7, 5, 6, 8, 7, 7, 6, 5, 9, 7, 6, 8, 8, 8, 7, 6, 9, 8, 8, 7, 7, 6, 8, 6, 7, 9, 8, 6, 8, 7, 6, 5, 10, 8, 7, 9, 9, 6, 9, 8, 7, 10]

cp's OEIS Frontend

A246348 a(1)=1, a(p_n) = 1 + a(n), a(c_n) = 1 + a(n), where p_n = n-th prime = A000040(n), c_n = n-th composite number = A002808(n); Also binary width of terms of A135141.

Table of values

List of values

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

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

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