A222118 - cp's OEIS frontend

A222118 Number of terms in Collatz (3x+1) trajectory of n that did not appear in previous trajectories.

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

[1, 1, 6, 0, 0, 1, 10, 0, 3, 0, 0, 1, 0, 0, 9, 0, 0, 1, 5, 0, 3, 0, 0, 1, 3, 0, 95, 0, 0, 1, 0, 0, 3, 0, 0, 1, 3, 0, 12, 0, 0, 1, 8, 0, 3, 0, 0, 1, 0, 0, 5, 0, 0, 1, 7, 0, 3, 0, 0, 1, 0, 0, 13, 0, 0, 1, 0, 0, 3, 0, 0, 1, 3, 0, 8, 0, 0, 1, 9, 0, 1, 0, 0, 1, 0, 0, 7]

cp's OEIS Frontend

A222118 Number of terms in Collatz (3x+1) trajectory of n that did not appear in previous trajectories.

Table of values

List of values

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

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

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