A375495 - cp's OEIS frontend

A375495 a(n) = number of different ways of selecting the minimum number of operations chosen from f(x) = 3x+1 and g(x) = floor(x/2) needed to reach n when starting from 1.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	4
6	1
7	1
8	6
9	1
10	3
11	1
12	14
13	1
14	2
15	5
16	5
17	1
18	28
19	1
20	1
21	4
22	1
23	9
24	5
25	9
26	1
27	48
28	1
29	1
30	2
31	3
32	10
33	1
34	1
35	15
36	5
37	23
38	12
39	2
40	1
41	131
42	1
43	3
44	1
45	4
46	6
47	3
48	20
49	5
50	2
51	1
52	1
53	27
54	5
55	43
56	34
57	25
58	1
59	4
60	1
61	1
62	332
63	1
64	5
65	5
66	2
67	1
68	10
69	8
70	12
71	3
72	37
73	5
74	5
75	4
76	10
77	2
78	1
79	1
80	39
81	5
82	63
83	68
84	67

[1, 1, 1, 2, 1, 4, 1, 1, 6, 1, 3, 1, 14, 1, 2, 5, 5, 1, 28, 1, 1, 4, 1, 9, 5, 9, 1, 48, 1, 1, 2, 3, 10, 1, 1, 15, 5, 23, 12, 2, 1, 131, 1, 3, 1, 4, 6, 3, 20, 5, 2, 1, 1, 27, 5, 43, 34, 25, 1, 4, 1, 1, 332, 1, 5, 5, 2, 1, 10, 8, 12, 3, 37, 5, 5, 4, 10, 2, 1, 1, 39, 5, 63, 68, 67]

cp's OEIS Frontend

A375495 a(n) = number of different ways of selecting the minimum number of operations chosen from f(x) = 3x+1 and g(x) = floor(x/2) needed to reach n when starting from 1.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	4
6	1
7	1
8	6
9	1
10	3
11	1
12	14
13	1
14	2
15	5
16	5
17	1
18	28
19	1
20	1
21	4
22	1
23	9
24	5
25	9
26	1
27	48
28	1
29	1
30	2
31	3
32	10
33	1
34	1
35	15
36	5
37	23
38	12
39	2
40	1
41	131
42	1
43	3
44	1
45	4
46	6
47	3
48	20
49	5
50	2
51	1
52	1
53	27
54	5
55	43
56	34
57	25
58	1
59	4
60	1
61	1
62	332
63	1
64	5
65	5
66	2
67	1
68	10
69	8
70	12
71	3
72	37
73	5
74	5
75	4
76	10
77	2
78	1
79	1
80	39
81	5
82	63
83	68
84	67

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	4
6	1
7	1
8	6
9	1
10	3
11	1
12	14
13	1
14	2
15	5
16	5
17	1
18	28
19	1
20	1
21	4
22	1
23	9
24	5
25	9
26	1
27	48
28	1
29	1
30	2
31	3
32	10
33	1
34	1
35	15
36	5
37	23
38	12
39	2
40	1
41	131
42	1
43	3
44	1
45	4
46	6
47	3
48	20
49	5
50	2
51	1
52	1
53	27
54	5
55	43
56	34
57	25
58	1
59	4
60	1
61	1
62	332
63	1
64	5
65	5
66	2
67	1
68	10
69	8
70	12
71	3
72	37
73	5
74	5
75	4
76	10
77	2
78	1
79	1
80	39
81	5
82	63
83	68
84	67

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	4
6	1
7	1
8	6
9	1
10	3
11	1
12	14
13	1
14	2
15	5
16	5
17	1
18	28
19	1
20	1
21	4
22	1
23	9
24	5
25	9
26	1
27	48
28	1
29	1
30	2
31	3
32	10
33	1
34	1
35	15
36	5
37	23
38	12
39	2
40	1
41	131
42	1
43	3
44	1
45	4
46	6
47	3
48	20
49	5
50	2
51	1
52	1
53	27
54	5
55	43
56	34
57	25
58	1
59	4
60	1
61	1
62	332
63	1
64	5
65	5
66	2
67	1
68	10
69	8
70	12
71	3
72	37
73	5
74	5
75	4
76	10
77	2
78	1
79	1
80	39
81	5
82	63
83	68
84	67