A245691 - cp's OEIS frontend

A245691 Irregular triangle of Collatz like iteration, x -> 3x, then repeat (x -> ceiling(x/2) if divisible by 3, otherwise x -> 3x) while x != 6.

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

[1, 3, 2, 6, 2, 6, 3, 9, 5, 15, 8, 24, 12, 6, 4, 12, 6, 5, 15, 8, 24, 12, 6, 6, 18, 9, 5, 15, 8, 24, 12, 6, 7, 21, 11, 33, 17, 51, 26, 78, 39, 20, 60, 30, 15, 8, 24, 12, 6, 8, 24, 12, 6, 9, 27, 14, 42, 21, 11, 33, 17, 51, 26, 78, 39, 20, 60, 30, 15, 8, 24, 12]

cp's OEIS Frontend

A245691 Irregular triangle of Collatz like iteration, x -> 3x, then repeat (x -> ceiling(x/2) if divisible by 3, otherwise x -> 3x) while x != 6.

Table of values

List of values

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

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

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