A347268 - cp's OEIS frontend

A347268 a(n) is the first term of the n-th 3x+1 sequence that shares infinitely many 1's with the 3x+1 sequence that starts at 2.

n	a(n)
1	2
2	3
3	7
4	9
5	16
6	20
7	21
8	24
9	26
10	31
11	34
12	35
13	39
14	41
15	44
16	45
17	46
18	54
19	55
20	56
21	58
22	60
23	61
24	72
25	73
26	74
27	76
28	77
29	81
30	97
31	98
32	99
33	100
34	101
35	102
36	107
37	123
38	127
39	128
40	129
41	130
42	131
43	132
44	133
45	134
46	142
47	143
48	155
49	160
50	167
51	168
52	169
53	170
54	171
55	172
56	173
57	174
58	177
59	178
60	179
61	188
62	189

[2, 3, 7, 9, 16, 20, 21, 24, 26, 31, 34, 35, 39, 41, 44, 45, 46, 54, 55, 56, 58, 60, 61, 72, 73, 74, 76, 77, 81, 97, 98, 99, 100, 101, 102, 107, 123, 127, 128, 129, 130, 131, 132, 133, 134, 142, 143, 155, 160, 167, 168, 169, 170, 171, 172, 173, 174, 177, 178, 179, 188, 189]

cp's OEIS Frontend

A347268 a(n) is the first term of the n-th 3x+1 sequence that shares infinitely many 1's with the 3x+1 sequence that starts at 2.

Table of values

List of values

n	a(n)
1	2
2	3
3	7
4	9
5	16
6	20
7	21
8	24
9	26
10	31
11	34
12	35
13	39
14	41
15	44
16	45
17	46
18	54
19	55
20	56
21	58
22	60
23	61
24	72
25	73
26	74
27	76
28	77
29	81
30	97
31	98
32	99
33	100
34	101
35	102
36	107
37	123
38	127
39	128
40	129
41	130
42	131
43	132
44	133
45	134
46	142
47	143
48	155
49	160
50	167
51	168
52	169
53	170
54	171
55	172
56	173
57	174
58	177
59	178
60	179
61	188
62	189

n	a(n)
1	2
2	3
3	7
4	9
5	16
6	20
7	21
8	24
9	26
10	31
11	34
12	35
13	39
14	41
15	44
16	45
17	46
18	54
19	55
20	56
21	58
22	60
23	61
24	72
25	73
26	74
27	76
28	77
29	81
30	97
31	98
32	99
33	100
34	101
35	102
36	107
37	123
38	127
39	128
40	129
41	130
42	131
43	132
44	133
45	134
46	142
47	143
48	155
49	160
50	167
51	168
52	169
53	170
54	171
55	172
56	173
57	174
58	177
59	178
60	179
61	188
62	189

n	a(n)
1	2
2	3
3	7
4	9
5	16
6	20
7	21
8	24
9	26
10	31
11	34
12	35
13	39
14	41
15	44
16	45
17	46
18	54
19	55
20	56
21	58
22	60
23	61
24	72
25	73
26	74
27	76
28	77
29	81
30	97
31	98
32	99
33	100
34	101
35	102
36	107
37	123
38	127
39	128
40	129
41	130
42	131
43	132
44	133
45	134
46	142
47	143
48	155
49	160
50	167
51	168
52	169
53	170
54	171
55	172
56	173
57	174
58	177
59	178
60	179
61	188
62	189