A355611 - cp's OEIS frontend

A355611 a(0) = 0; for n > 0, a(n) is the smallest positive number not occurring earlier such that the binary string of |a(n) - a(n-1)| does not appear in the binary string concatenation of a(0)..a(n-1).

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	17
6	7
7	23
8	2
9	12
10	22
11	6
12	16
13	37
14	58
15	10
16	38
17	4
18	32
19	60
20	14
21	48
22	82
23	8
24	42
25	85
26	15
27	61
28	107
29	11
30	67
31	131
32	18
33	86
34	13
35	77
36	141
37	21
38	89
39	25
40	93
41	20
42	84
43	148
44	19
45	83
46	147
47	27
48	91
49	155
50	26
51	90
52	154
53	24
54	88
55	152
56	28
57	92
58	156
59	36
60	100
61	164
62	30
63	94
64	158
65	29
66	142
67	78
68	191
69	31
70	95
71	159

[0, 1, 3, 5, 9, 17, 7, 23, 2, 12, 22, 6, 16, 37, 58, 10, 38, 4, 32, 60, 14, 48, 82, 8, 42, 85, 15, 61, 107, 11, 67, 131, 18, 86, 13, 77, 141, 21, 89, 25, 93, 20, 84, 148, 19, 83, 147, 27, 91, 155, 26, 90, 154, 24, 88, 152, 28, 92, 156, 36, 100, 164, 30, 94, 158, 29, 142, 78, 191, 31, 95, 159]

cp's OEIS Frontend

A355611 a(0) = 0; for n > 0, a(n) is the smallest positive number not occurring earlier such that the binary string of |a(n) - a(n-1)| 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	1
2	3
3	5
4	9
5	17
6	7
7	23
8	2
9	12
10	22
11	6
12	16
13	37
14	58
15	10
16	38
17	4
18	32
19	60
20	14
21	48
22	82
23	8
24	42
25	85
26	15
27	61
28	107
29	11
30	67
31	131
32	18
33	86
34	13
35	77
36	141
37	21
38	89
39	25
40	93
41	20
42	84
43	148
44	19
45	83
46	147
47	27
48	91
49	155
50	26
51	90
52	154
53	24
54	88
55	152
56	28
57	92
58	156
59	36
60	100
61	164
62	30
63	94
64	158
65	29
66	142
67	78
68	191
69	31
70	95
71	159

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	17
6	7
7	23
8	2
9	12
10	22
11	6
12	16
13	37
14	58
15	10
16	38
17	4
18	32
19	60
20	14
21	48
22	82
23	8
24	42
25	85
26	15
27	61
28	107
29	11
30	67
31	131
32	18
33	86
34	13
35	77
36	141
37	21
38	89
39	25
40	93
41	20
42	84
43	148
44	19
45	83
46	147
47	27
48	91
49	155
50	26
51	90
52	154
53	24
54	88
55	152
56	28
57	92
58	156
59	36
60	100
61	164
62	30
63	94
64	158
65	29
66	142
67	78
68	191
69	31
70	95
71	159

n	a(n)
0	0
1	1
2	3
3	5
4	9
5	17
6	7
7	23
8	2
9	12
10	22
11	6
12	16
13	37
14	58
15	10
16	38
17	4
18	32
19	60
20	14
21	48
22	82
23	8
24	42
25	85
26	15
27	61
28	107
29	11
30	67
31	131
32	18
33	86
34	13
35	77
36	141
37	21
38	89
39	25
40	93
41	20
42	84
43	148
44	19
45	83
46	147
47	27
48	91
49	155
50	26
51	90
52	154
53	24
54	88
55	152
56	28
57	92
58	156
59	36
60	100
61	164
62	30
63	94
64	158
65	29
66	142
67	78
68	191
69	31
70	95
71	159