A199637 - cp's OEIS frontend

A199637 Least odd number k such that in the Collatz sequence of k there are n even numbers.

n	a(n)
4	5
5	3
6	21
7	13
8	85
9	17
10	11
11	7
12	15
13	9
14	19
15	37
16	25
17	49
18	33
19	65
20	43
21	87
22	57
23	39
24	79
25	153
26	105
27	203
28	135
29	271
30	185
31	123
32	247
33	169
34	329
35	219
36	159
37	295
38	569
39	379
40	283
41	505
42	377
43	251
44	167
45	111
46	223
47	445
48	297
49	593
50	395
51	263
52	175
53	351
54	233
55	155
56	103
57	207
58	137
59	91
60	183

[5, 3, 21, 13, 85, 17, 11, 7, 15, 9, 19, 37, 25, 49, 33, 65, 43, 87, 57, 39, 79, 153, 105, 203, 135, 271, 185, 123, 247, 169, 329, 219, 159, 295, 569, 379, 283, 505, 377, 251, 167, 111, 223, 445, 297, 593, 395, 263, 175, 351, 233, 155, 103, 207, 137, 91, 183]

cp's OEIS Frontend

A199637 Least odd number k such that in the Collatz sequence of k there are n even numbers.

Table of values

List of values

n	a(n)
4	5
5	3
6	21
7	13
8	85
9	17
10	11
11	7
12	15
13	9
14	19
15	37
16	25
17	49
18	33
19	65
20	43
21	87
22	57
23	39
24	79
25	153
26	105
27	203
28	135
29	271
30	185
31	123
32	247
33	169
34	329
35	219
36	159
37	295
38	569
39	379
40	283
41	505
42	377
43	251
44	167
45	111
46	223
47	445
48	297
49	593
50	395
51	263
52	175
53	351
54	233
55	155
56	103
57	207
58	137
59	91
60	183

n	a(n)
4	5
5	3
6	21
7	13
8	85
9	17
10	11
11	7
12	15
13	9
14	19
15	37
16	25
17	49
18	33
19	65
20	43
21	87
22	57
23	39
24	79
25	153
26	105
27	203
28	135
29	271
30	185
31	123
32	247
33	169
34	329
35	219
36	159
37	295
38	569
39	379
40	283
41	505
42	377
43	251
44	167
45	111
46	223
47	445
48	297
49	593
50	395
51	263
52	175
53	351
54	233
55	155
56	103
57	207
58	137
59	91
60	183

n	a(n)
4	5
5	3
6	21
7	13
8	85
9	17
10	11
11	7
12	15
13	9
14	19
15	37
16	25
17	49
18	33
19	65
20	43
21	87
22	57
23	39
24	79
25	153
26	105
27	203
28	135
29	271
30	185
31	123
32	247
33	169
34	329
35	219
36	159
37	295
38	569
39	379
40	283
41	505
42	377
43	251
44	167
45	111
46	223
47	445
48	297
49	593
50	395
51	263
52	175
53	351
54	233
55	155
56	103
57	207
58	137
59	91
60	183