A372447 - cp's OEIS frontend

A372447 a(n) = A000523(A372443(n)); One less than the binary length of the n-th iterate of 27 with Reduced Collatz-function R.

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

[4, 5, 4, 5, 6, 6, 7, 6, 6, 7, 6, 7, 7, 7, 8, 8, 9, 8, 7, 7, 8, 8, 8, 8, 8, 9, 10, 10, 11, 9, 10, 11, 11, 9, 8, 8, 5, 4, 5, 5, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A372447 a(n) = A000523(A372443(n)); One less than the binary length of the n-th iterate of 27 with Reduced Collatz-function R.

Table of values

List of values

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

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

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