A359858 - cp's OEIS frontend

A359858 a(0) = 0; for n > 0, a(n) is the smallest positive number not occurring earlier such that the ones' complement of the binary string of a(n-1) + a(n) does not appear in the binary string concatenation of a(0)..a(n-1).

n	a(n)
0	0
1	2
2	6
3	5
4	3
5	8
6	14
7	18
8	20
9	12
10	24
11	23
12	9
13	27
14	37
15	10
16	22
17	25
18	7
19	40
20	39
21	52
22	42
23	49
24	15
25	32
26	59
27	35
28	56
29	38
30	53
31	41
32	50
33	44
34	47
35	81
36	13
37	78
38	16
39	75
40	57
41	34
42	94
43	61
44	30
45	98
46	60
47	31
48	97
49	58
50	33
51	122
52	63
53	28
54	127
55	55
56	36
57	126
58	65
59	118
60	67
61	95
62	88
63	74
64	109
65	76
66	86
67	99
68	84
69	101
70	82
71	80
72	103
73	187

[0, 2, 6, 5, 3, 8, 14, 18, 20, 12, 24, 23, 9, 27, 37, 10, 22, 25, 7, 40, 39, 52, 42, 49, 15, 32, 59, 35, 56, 38, 53, 41, 50, 44, 47, 81, 13, 78, 16, 75, 57, 34, 94, 61, 30, 98, 60, 31, 97, 58, 33, 122, 63, 28, 127, 55, 36, 126, 65, 118, 67, 95, 88, 74, 109, 76, 86, 99, 84, 101, 82, 80, 103, 187]

cp's OEIS Frontend

A359858 a(0) = 0; for n > 0, a(n) is the smallest positive number not occurring earlier such that the ones' complement of the binary string of a(n-1) + a(n) does not appear in the binary string concatenation of a(0)..a(n-1).

Table of values

List of values

n	a(n)
0	0
1	2
2	6
3	5
4	3
5	8
6	14
7	18
8	20
9	12
10	24
11	23
12	9
13	27
14	37
15	10
16	22
17	25
18	7
19	40
20	39
21	52
22	42
23	49
24	15
25	32
26	59
27	35
28	56
29	38
30	53
31	41
32	50
33	44
34	47
35	81
36	13
37	78
38	16
39	75
40	57
41	34
42	94
43	61
44	30
45	98
46	60
47	31
48	97
49	58
50	33
51	122
52	63
53	28
54	127
55	55
56	36
57	126
58	65
59	118
60	67
61	95
62	88
63	74
64	109
65	76
66	86
67	99
68	84
69	101
70	82
71	80
72	103
73	187

n	a(n)
0	0
1	2
2	6
3	5
4	3
5	8
6	14
7	18
8	20
9	12
10	24
11	23
12	9
13	27
14	37
15	10
16	22
17	25
18	7
19	40
20	39
21	52
22	42
23	49
24	15
25	32
26	59
27	35
28	56
29	38
30	53
31	41
32	50
33	44
34	47
35	81
36	13
37	78
38	16
39	75
40	57
41	34
42	94
43	61
44	30
45	98
46	60
47	31
48	97
49	58
50	33
51	122
52	63
53	28
54	127
55	55
56	36
57	126
58	65
59	118
60	67
61	95
62	88
63	74
64	109
65	76
66	86
67	99
68	84
69	101
70	82
71	80
72	103
73	187

n	a(n)
0	0
1	2
2	6
3	5
4	3
5	8
6	14
7	18
8	20
9	12
10	24
11	23
12	9
13	27
14	37
15	10
16	22
17	25
18	7
19	40
20	39
21	52
22	42
23	49
24	15
25	32
26	59
27	35
28	56
29	38
30	53
31	41
32	50
33	44
34	47
35	81
36	13
37	78
38	16
39	75
40	57
41	34
42	94
43	61
44	30
45	98
46	60
47	31
48	97
49	58
50	33
51	122
52	63
53	28
54	127
55	55
56	36
57	126
58	65
59	118
60	67
61	95
62	88
63	74
64	109
65	76
66	86
67	99
68	84
69	101
70	82
71	80
72	103
73	187