A340985 - cp's OEIS frontend

A340985 Irregular triangle read by rows: n-th row gives the order of all undirected (also called weakly connected) components of the Collatz digraph of order n, sorted from largest to smallest.

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

[1, 2, 2, 1, 3, 1, 3, 2, 3, 3, 3, 3, 1, 7, 1, 7, 1, 1, 8, 1, 1, 8, 2, 1, 9, 2, 1, 9, 2, 1, 1, 9, 4, 1, 9, 4, 1, 1, 10, 4, 1, 1, 10, 5, 1, 1, 10, 6, 1, 1, 10, 6, 1, 1, 1, 12, 6, 1, 1, 12, 6, 1, 1, 1, 12, 7, 1, 1, 1, 12, 7, 2, 1, 1, 13, 7, 2, 1, 1, 13, 7, 2, 1, 1]

cp's OEIS Frontend

A340985 Irregular triangle read by rows: n-th row gives the order of all undirected (also called weakly connected) components of the Collatz digraph of order n, sorted from largest to smallest.

Table of values

List of values

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

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

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