A292388 - cp's OEIS frontend

A292388 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, SumXOR_{k=1..n} a(k) is prime (where SumXOR is the analog of summation under the binary XOR operation).

n	a(n)
1	2
2	1
3	4
4	5
5	7
6	6
7	8
8	9
9	15
10	10
11	12
12	14
13	18
14	16
15	20
16	17
17	19
18	22
19	24
20	26
21	32
22	30
23	36
24	28
25	38
26	34
27	40
28	42
29	44
30	43
31	21
32	50
33	39
34	29
35	48
36	45
37	31
38	52
39	46
40	58
41	54
42	62
43	55
44	41
45	56
46	60
47	66
48	68
49	72
50	74
51	64
52	78
53	84
54	76
55	63
56	57
57	80
58	86
59	88
60	94
61	90
62	92
63	100
64	70
65	96
66	98
67	82

[2, 1, 4, 5, 7, 6, 8, 9, 15, 10, 12, 14, 18, 16, 20, 17, 19, 22, 24, 26, 32, 30, 36, 28, 38, 34, 40, 42, 44, 43, 21, 50, 39, 29, 48, 45, 31, 52, 46, 58, 54, 62, 55, 41, 56, 60, 66, 68, 72, 74, 64, 78, 84, 76, 63, 57, 80, 86, 88, 94, 90, 92, 100, 70, 96, 98, 82]

cp's OEIS Frontend

A292388 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, SumXOR_{k=1..n} a(k) is prime (where SumXOR is the analog of summation under the binary XOR operation).

Table of values

List of values

n	a(n)
1	2
2	1
3	4
4	5
5	7
6	6
7	8
8	9
9	15
10	10
11	12
12	14
13	18
14	16
15	20
16	17
17	19
18	22
19	24
20	26
21	32
22	30
23	36
24	28
25	38
26	34
27	40
28	42
29	44
30	43
31	21
32	50
33	39
34	29
35	48
36	45
37	31
38	52
39	46
40	58
41	54
42	62
43	55
44	41
45	56
46	60
47	66
48	68
49	72
50	74
51	64
52	78
53	84
54	76
55	63
56	57
57	80
58	86
59	88
60	94
61	90
62	92
63	100
64	70
65	96
66	98
67	82

n	a(n)
1	2
2	1
3	4
4	5
5	7
6	6
7	8
8	9
9	15
10	10
11	12
12	14
13	18
14	16
15	20
16	17
17	19
18	22
19	24
20	26
21	32
22	30
23	36
24	28
25	38
26	34
27	40
28	42
29	44
30	43
31	21
32	50
33	39
34	29
35	48
36	45
37	31
38	52
39	46
40	58
41	54
42	62
43	55
44	41
45	56
46	60
47	66
48	68
49	72
50	74
51	64
52	78
53	84
54	76
55	63
56	57
57	80
58	86
59	88
60	94
61	90
62	92
63	100
64	70
65	96
66	98
67	82

n	a(n)
1	2
2	1
3	4
4	5
5	7
6	6
7	8
8	9
9	15
10	10
11	12
12	14
13	18
14	16
15	20
16	17
17	19
18	22
19	24
20	26
21	32
22	30
23	36
24	28
25	38
26	34
27	40
28	42
29	44
30	43
31	21
32	50
33	39
34	29
35	48
36	45
37	31
38	52
39	46
40	58
41	54
42	62
43	55
44	41
45	56
46	60
47	66
48	68
49	72
50	74
51	64
52	78
53	84
54	76
55	63
56	57
57	80
58	86
59	88
60	94
61	90
62	92
63	100
64	70
65	96
66	98
67	82