A351993 - cp's OEIS frontend

A351993 Lexicographically earliest infinite sequence of distinct positive numbers such that, when they are written in binary and concatenated, every pair of digits starting from a(1) contains the digits 0 and 1.

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	9
7	10
8	18
9	6
10	20
11	12
12	21
13	37
14	38
15	41
16	42
17	74
18	22
19	76
20	25
21	82
22	26
23	84
24	44
25	50
26	52
27	85
28	149
29	150
30	153
31	154
32	165
33	166
34	169
35	170
36	298
37	86
38	300
39	89
40	306
41	90
42	308
43	101
44	330
45	102
46	332
47	105
48	338
49	106
50	340
51	172
52	178
53	180
54	202
55	204
56	210
57	212
58	341
59	597
60	598
61	601
62	602
63	613
64	614
65	617
66	618

[0, 1, 2, 4, 5, 9, 10, 18, 6, 20, 12, 21, 37, 38, 41, 42, 74, 22, 76, 25, 82, 26, 84, 44, 50, 52, 85, 149, 150, 153, 154, 165, 166, 169, 170, 298, 86, 300, 89, 306, 90, 308, 101, 330, 102, 332, 105, 338, 106, 340, 172, 178, 180, 202, 204, 210, 212, 341, 597, 598, 601, 602, 613, 614, 617, 618]

cp's OEIS Frontend

A351993 Lexicographically earliest infinite sequence of distinct positive numbers such that, when they are written in binary and concatenated, every pair of digits starting from a(1) contains the digits 0 and 1.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	9
7	10
8	18
9	6
10	20
11	12
12	21
13	37
14	38
15	41
16	42
17	74
18	22
19	76
20	25
21	82
22	26
23	84
24	44
25	50
26	52
27	85
28	149
29	150
30	153
31	154
32	165
33	166
34	169
35	170
36	298
37	86
38	300
39	89
40	306
41	90
42	308
43	101
44	330
45	102
46	332
47	105
48	338
49	106
50	340
51	172
52	178
53	180
54	202
55	204
56	210
57	212
58	341
59	597
60	598
61	601
62	602
63	613
64	614
65	617
66	618

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	9
7	10
8	18
9	6
10	20
11	12
12	21
13	37
14	38
15	41
16	42
17	74
18	22
19	76
20	25
21	82
22	26
23	84
24	44
25	50
26	52
27	85
28	149
29	150
30	153
31	154
32	165
33	166
34	169
35	170
36	298
37	86
38	300
39	89
40	306
41	90
42	308
43	101
44	330
45	102
46	332
47	105
48	338
49	106
50	340
51	172
52	178
53	180
54	202
55	204
56	210
57	212
58	341
59	597
60	598
61	601
62	602
63	613
64	614
65	617
66	618

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	9
7	10
8	18
9	6
10	20
11	12
12	21
13	37
14	38
15	41
16	42
17	74
18	22
19	76
20	25
21	82
22	26
23	84
24	44
25	50
26	52
27	85
28	149
29	150
30	153
31	154
32	165
33	166
34	169
35	170
36	298
37	86
38	300
39	89
40	306
41	90
42	308
43	101
44	330
45	102
46	332
47	105
48	338
49	106
50	340
51	172
52	178
53	180
54	202
55	204
56	210
57	212
58	341
59	597
60	598
61	601
62	602
63	613
64	614
65	617
66	618