A360706 - cp's OEIS frontend

A360706 a(n) is the least positive number not yet used such that its binary representation has either all or none of its 1-bits in common with the XOR of a(1) to a(n-1).

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	12
7	5
8	10
9	6
10	9
11	7
12	16
13	17
14	24
15	14
16	11
17	18
18	20
19	13
20	15
21	19
22	32
23	36
24	21
25	25
26	26
27	22
28	23
29	27
30	33
31	37
32	28
33	34
34	30
35	29
36	40
37	42
38	31
39	64
40	96
41	35
42	68
43	38
44	44
45	41
46	43
47	39
48	48
49	56
50	45
51	65
52	66
53	46
54	47
55	67
56	80
57	52
58	49
59	57
60	50
61	82
62	69
63	97
64	51
65	53
66	60
67	54
68	55
69	58
70	72
71	73
72	59
73	61
74	76
75	70
76	71
77	74

[1, 2, 3, 4, 8, 12, 5, 10, 6, 9, 7, 16, 17, 24, 14, 11, 18, 20, 13, 15, 19, 32, 36, 21, 25, 26, 22, 23, 27, 33, 37, 28, 34, 30, 29, 40, 42, 31, 64, 96, 35, 68, 38, 44, 41, 43, 39, 48, 56, 45, 65, 66, 46, 47, 67, 80, 52, 49, 57, 50, 82, 69, 97, 51, 53, 60, 54, 55, 58, 72, 73, 59, 61, 76, 70, 71, 74]

cp's OEIS Frontend

A360706 a(n) is the least positive number not yet used such that its binary representation has either all or none of its 1-bits in common with the XOR of a(1) to a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	12
7	5
8	10
9	6
10	9
11	7
12	16
13	17
14	24
15	14
16	11
17	18
18	20
19	13
20	15
21	19
22	32
23	36
24	21
25	25
26	26
27	22
28	23
29	27
30	33
31	37
32	28
33	34
34	30
35	29
36	40
37	42
38	31
39	64
40	96
41	35
42	68
43	38
44	44
45	41
46	43
47	39
48	48
49	56
50	45
51	65
52	66
53	46
54	47
55	67
56	80
57	52
58	49
59	57
60	50
61	82
62	69
63	97
64	51
65	53
66	60
67	54
68	55
69	58
70	72
71	73
72	59
73	61
74	76
75	70
76	71
77	74

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	12
7	5
8	10
9	6
10	9
11	7
12	16
13	17
14	24
15	14
16	11
17	18
18	20
19	13
20	15
21	19
22	32
23	36
24	21
25	25
26	26
27	22
28	23
29	27
30	33
31	37
32	28
33	34
34	30
35	29
36	40
37	42
38	31
39	64
40	96
41	35
42	68
43	38
44	44
45	41
46	43
47	39
48	48
49	56
50	45
51	65
52	66
53	46
54	47
55	67
56	80
57	52
58	49
59	57
60	50
61	82
62	69
63	97
64	51
65	53
66	60
67	54
68	55
69	58
70	72
71	73
72	59
73	61
74	76
75	70
76	71
77	74

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	12
7	5
8	10
9	6
10	9
11	7
12	16
13	17
14	24
15	14
16	11
17	18
18	20
19	13
20	15
21	19
22	32
23	36
24	21
25	25
26	26
27	22
28	23
29	27
30	33
31	37
32	28
33	34
34	30
35	29
36	40
37	42
38	31
39	64
40	96
41	35
42	68
43	38
44	44
45	41
46	43
47	39
48	48
49	56
50	45
51	65
52	66
53	46
54	47
55	67
56	80
57	52
58	49
59	57
60	50
61	82
62	69
63	97
64	51
65	53
66	60
67	54
68	55
69	58
70	72
71	73
72	59
73	61
74	76
75	70
76	71
77	74