A303769 - cp's OEIS frontend

A303769 a(0) = 0, a(n+1) is either the largest number obtained from a(n) by toggling a single 1-bit off (to 0) if no such number is yet in the sequence, otherwise the least number not yet in sequence that can be obtained from a(n) by toggling a single 0-bit on (to 1). In both cases the bit to be toggled is the rightmost possible that results yet an unencountered number.

n	a(n)
0	0
1	1
2	3
3	2
4	6
5	4
6	5
7	7
8	15
9	14
10	12
11	8
12	9
13	11
14	10
15	26
16	24
17	16
18	17
19	19
20	18
21	22
22	20
23	21
24	23
25	31
26	30
27	28
28	29
29	25
30	27
31	59
32	58
33	56
34	48
35	32
36	33
37	35
38	34
39	38
40	36
41	37
42	39
43	47
44	46
45	44
46	40
47	41
48	43
49	42
50	106
51	104
52	96
53	64
54	65
55	67
56	66
57	70
58	68
59	69
60	71
61	79
62	78
63	76
64	72
65	73
66	75
67	74
68	90
69	88
70	80
71	81
72	83
73	82
74	86
75	84
76	85
77	87
78	95
79	94
80	92
81	93
82	89
83	91
84	123
85	122
86	120
87	112
88	113
89	97
90	99

[0, 1, 3, 2, 6, 4, 5, 7, 15, 14, 12, 8, 9, 11, 10, 26, 24, 16, 17, 19, 18, 22, 20, 21, 23, 31, 30, 28, 29, 25, 27, 59, 58, 56, 48, 32, 33, 35, 34, 38, 36, 37, 39, 47, 46, 44, 40, 41, 43, 42, 106, 104, 96, 64, 65, 67, 66, 70, 68, 69, 71, 79, 78, 76, 72, 73, 75, 74, 90, 88, 80, 81, 83, 82, 86, 84, 85, 87, 95, 94, 92, 93, 89, 91, 123, 122, 120, 112, 113, 97, 99]

cp's OEIS Frontend

Table of values

List of values

n	a(n)
0	0
1	1
2	3
3	2
4	6
5	4
6	5
7	7
8	15
9	14
10	12
11	8
12	9
13	11
14	10
15	26
16	24
17	16
18	17
19	19
20	18
21	22
22	20
23	21
24	23
25	31
26	30
27	28
28	29
29	25
30	27
31	59
32	58
33	56
34	48
35	32
36	33
37	35
38	34
39	38
40	36
41	37
42	39
43	47
44	46
45	44
46	40
47	41
48	43
49	42
50	106
51	104
52	96
53	64
54	65
55	67
56	66
57	70
58	68
59	69
60	71
61	79
62	78
63	76
64	72
65	73
66	75
67	74
68	90
69	88
70	80
71	81
72	83
73	82
74	86
75	84
76	85
77	87
78	95
79	94
80	92
81	93
82	89
83	91
84	123
85	122
86	120
87	112
88	113
89	97
90	99

n	a(n)
0	0
1	1
2	3
3	2
4	6
5	4
6	5
7	7
8	15
9	14
10	12
11	8
12	9
13	11
14	10
15	26
16	24
17	16
18	17
19	19
20	18
21	22
22	20
23	21
24	23
25	31
26	30
27	28
28	29
29	25
30	27
31	59
32	58
33	56
34	48
35	32
36	33
37	35
38	34
39	38
40	36
41	37
42	39
43	47
44	46
45	44
46	40
47	41
48	43
49	42
50	106
51	104
52	96
53	64
54	65
55	67
56	66
57	70
58	68
59	69
60	71
61	79
62	78
63	76
64	72
65	73
66	75
67	74
68	90
69	88
70	80
71	81
72	83
73	82
74	86
75	84
76	85
77	87
78	95
79	94
80	92
81	93
82	89
83	91
84	123
85	122
86	120
87	112
88	113
89	97
90	99

n	a(n)
0	0
1	1
2	3
3	2
4	6
5	4
6	5
7	7
8	15
9	14
10	12
11	8
12	9
13	11
14	10
15	26
16	24
17	16
18	17
19	19
20	18
21	22
22	20
23	21
24	23
25	31
26	30
27	28
28	29
29	25
30	27
31	59
32	58
33	56
34	48
35	32
36	33
37	35
38	34
39	38
40	36
41	37
42	39
43	47
44	46
45	44
46	40
47	41
48	43
49	42
50	106
51	104
52	96
53	64
54	65
55	67
56	66
57	70
58	68
59	69
60	71
61	79
62	78
63	76
64	72
65	73
66	75
67	74
68	90
69	88
70	80
71	81
72	83
73	82
74	86
75	84
76	85
77	87
78	95
79	94
80	92
81	93
82	89
83	91
84	123
85	122
86	120
87	112
88	113
89	97
90	99