A359114 - cp's OEIS frontend

A359114 a(1) = 1; for n > 1, a(n) is the smallest positive number which has not appeared that shares a factor with the sum of the first n bits of the binary Champernowne string starting from 1.

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	10
8	15
9	8
10	9
11	7
12	12
13	18
14	21
15	14
16	11
17	16
18	13
19	26
20	39
21	52
22	20
23	22
24	24
25	25
26	28
27	30
28	17
29	34
30	27
31	32
32	19
33	35
34	33
35	36
36	38
37	40
38	23
39	42
40	44
41	45
42	46
43	48
44	49
45	50
46	29
47	51
48	31
49	54
50	55
51	57
52	60
53	63
54	66
55	56
56	58
57	62
58	64
59	65
60	68
61	69
62	70
63	37
64	74
65	72
66	76
67	78
68	75
69	80
70	41
71	82
72	77
73	81
74	84
75	43
76	86

[1, 2, 4, 3, 6, 5, 10, 15, 8, 9, 7, 12, 18, 21, 14, 11, 16, 13, 26, 39, 52, 20, 22, 24, 25, 28, 30, 17, 34, 27, 32, 19, 35, 33, 36, 38, 40, 23, 42, 44, 45, 46, 48, 49, 50, 29, 51, 31, 54, 55, 57, 60, 63, 66, 56, 58, 62, 64, 65, 68, 69, 70, 37, 74, 72, 76, 78, 75, 80, 41, 82, 77, 81, 84, 43, 86]

cp's OEIS Frontend

A359114 a(1) = 1; for n > 1, a(n) is the smallest positive number which has not appeared that shares a factor with the sum of the first n bits of the binary Champernowne string starting from 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	10
8	15
9	8
10	9
11	7
12	12
13	18
14	21
15	14
16	11
17	16
18	13
19	26
20	39
21	52
22	20
23	22
24	24
25	25
26	28
27	30
28	17
29	34
30	27
31	32
32	19
33	35
34	33
35	36
36	38
37	40
38	23
39	42
40	44
41	45
42	46
43	48
44	49
45	50
46	29
47	51
48	31
49	54
50	55
51	57
52	60
53	63
54	66
55	56
56	58
57	62
58	64
59	65
60	68
61	69
62	70
63	37
64	74
65	72
66	76
67	78
68	75
69	80
70	41
71	82
72	77
73	81
74	84
75	43
76	86

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	10
8	15
9	8
10	9
11	7
12	12
13	18
14	21
15	14
16	11
17	16
18	13
19	26
20	39
21	52
22	20
23	22
24	24
25	25
26	28
27	30
28	17
29	34
30	27
31	32
32	19
33	35
34	33
35	36
36	38
37	40
38	23
39	42
40	44
41	45
42	46
43	48
44	49
45	50
46	29
47	51
48	31
49	54
50	55
51	57
52	60
53	63
54	66
55	56
56	58
57	62
58	64
59	65
60	68
61	69
62	70
63	37
64	74
65	72
66	76
67	78
68	75
69	80
70	41
71	82
72	77
73	81
74	84
75	43
76	86

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	10
8	15
9	8
10	9
11	7
12	12
13	18
14	21
15	14
16	11
17	16
18	13
19	26
20	39
21	52
22	20
23	22
24	24
25	25
26	28
27	30
28	17
29	34
30	27
31	32
32	19
33	35
34	33
35	36
36	38
37	40
38	23
39	42
40	44
41	45
42	46
43	48
44	49
45	50
46	29
47	51
48	31
49	54
50	55
51	57
52	60
53	63
54	66
55	56
56	58
57	62
58	64
59	65
60	68
61	69
62	70
63	37
64	74
65	72
66	76
67	78
68	75
69	80
70	41
71	82
72	77
73	81
74	84
75	43
76	86