A344841 - cp's OEIS frontend

A344841 a(n) is the least positive number not of the form a(k) XOR ... XOR a(m) with 1 <= k <= m < n (where XOR denotes the bitwise XOR operator).

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	12
7	14
8	16
9	17
10	19
11	20
12	21
13	23
14	32
15	33
16	35
17	48
18	49
19	51
20	56
21	57
22	59
23	64
24	65
25	67
26	68
27	69
28	71
29	76
30	77
31	79
32	80
33	81
34	83
35	84
36	85
37	87
38	92
39	93
40	95
41	128
42	129
43	131
44	132
45	133
46	135
47	140
48	141
49	143
50	192
51	193
52	195
53	196
54	197
55	199
56	204
57	205
58	207
59	224
60	225
61	227

[1, 2, 4, 5, 8, 12, 14, 16, 17, 19, 20, 21, 23, 32, 33, 35, 48, 49, 51, 56, 57, 59, 64, 65, 67, 68, 69, 71, 76, 77, 79, 80, 81, 83, 84, 85, 87, 92, 93, 95, 128, 129, 131, 132, 133, 135, 140, 141, 143, 192, 193, 195, 196, 197, 199, 204, 205, 207, 224, 225, 227]

cp's OEIS Frontend

A344841 a(n) is the least positive number not of the form a(k) XOR ... XOR a(m) with 1 <= k <= m < n (where XOR denotes the bitwise XOR operator).

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	12
7	14
8	16
9	17
10	19
11	20
12	21
13	23
14	32
15	33
16	35
17	48
18	49
19	51
20	56
21	57
22	59
23	64
24	65
25	67
26	68
27	69
28	71
29	76
30	77
31	79
32	80
33	81
34	83
35	84
36	85
37	87
38	92
39	93
40	95
41	128
42	129
43	131
44	132
45	133
46	135
47	140
48	141
49	143
50	192
51	193
52	195
53	196
54	197
55	199
56	204
57	205
58	207
59	224
60	225
61	227

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	12
7	14
8	16
9	17
10	19
11	20
12	21
13	23
14	32
15	33
16	35
17	48
18	49
19	51
20	56
21	57
22	59
23	64
24	65
25	67
26	68
27	69
28	71
29	76
30	77
31	79
32	80
33	81
34	83
35	84
36	85
37	87
38	92
39	93
40	95
41	128
42	129
43	131
44	132
45	133
46	135
47	140
48	141
49	143
50	192
51	193
52	195
53	196
54	197
55	199
56	204
57	205
58	207
59	224
60	225
61	227

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	12
7	14
8	16
9	17
10	19
11	20
12	21
13	23
14	32
15	33
16	35
17	48
18	49
19	51
20	56
21	57
22	59
23	64
24	65
25	67
26	68
27	69
28	71
29	76
30	77
31	79
32	80
33	81
34	83
35	84
36	85
37	87
38	92
39	93
40	95
41	128
42	129
43	131
44	132
45	133
46	135
47	140
48	141
49	143
50	192
51	193
52	195
53	196
54	197
55	199
56	204
57	205
58	207
59	224
60	225
61	227