A158929 - cp's OEIS frontend

A158929 a(n) is the smallest integer not yet in the sequence with no common base-4 digit with a(n-1).

n	a(n)
1	1
2	2
3	3
4	4
5	10
6	5
7	8
8	7
9	32
10	13
11	34
12	15
13	6
14	12
15	9
16	48
17	21
18	11
19	16
20	14
21	17
22	42
23	19
24	170
25	20
26	43
27	64
28	46
29	65
30	47
31	68
32	58
33	69
34	59
35	80
36	62
37	81
38	63
39	18
40	255
41	22
42	51
43	25
44	60
45	26
46	192
47	37
48	195
49	38
50	204
51	41
52	207
53	85
54	35
55	341
56	40
57	23
58	128
59	29
60	130
61	31
62	136
63	53
64	138
65	55
66	160
67	61
68	162

[1, 2, 3, 4, 10, 5, 8, 7, 32, 13, 34, 15, 6, 12, 9, 48, 21, 11, 16, 14, 17, 42, 19, 170, 20, 43, 64, 46, 65, 47, 68, 58, 69, 59, 80, 62, 81, 63, 18, 255, 22, 51, 25, 60, 26, 192, 37, 195, 38, 204, 41, 207, 85, 35, 341, 40, 23, 128, 29, 130, 31, 136, 53, 138, 55, 160, 61, 162]

cp's OEIS Frontend

A158929 a(n) is the smallest integer not yet in the sequence with no common base-4 digit with a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	10
6	5
7	8
8	7
9	32
10	13
11	34
12	15
13	6
14	12
15	9
16	48
17	21
18	11
19	16
20	14
21	17
22	42
23	19
24	170
25	20
26	43
27	64
28	46
29	65
30	47
31	68
32	58
33	69
34	59
35	80
36	62
37	81
38	63
39	18
40	255
41	22
42	51
43	25
44	60
45	26
46	192
47	37
48	195
49	38
50	204
51	41
52	207
53	85
54	35
55	341
56	40
57	23
58	128
59	29
60	130
61	31
62	136
63	53
64	138
65	55
66	160
67	61
68	162

n	a(n)
1	1
2	2
3	3
4	4
5	10
6	5
7	8
8	7
9	32
10	13
11	34
12	15
13	6
14	12
15	9
16	48
17	21
18	11
19	16
20	14
21	17
22	42
23	19
24	170
25	20
26	43
27	64
28	46
29	65
30	47
31	68
32	58
33	69
34	59
35	80
36	62
37	81
38	63
39	18
40	255
41	22
42	51
43	25
44	60
45	26
46	192
47	37
48	195
49	38
50	204
51	41
52	207
53	85
54	35
55	341
56	40
57	23
58	128
59	29
60	130
61	31
62	136
63	53
64	138
65	55
66	160
67	61
68	162

n	a(n)
1	1
2	2
3	3
4	4
5	10
6	5
7	8
8	7
9	32
10	13
11	34
12	15
13	6
14	12
15	9
16	48
17	21
18	11
19	16
20	14
21	17
22	42
23	19
24	170
25	20
26	43
27	64
28	46
29	65
30	47
31	68
32	58
33	69
34	59
35	80
36	62
37	81
38	63
39	18
40	255
41	22
42	51
43	25
44	60
45	26
46	192
47	37
48	195
49	38
50	204
51	41
52	207
53	85
54	35
55	341
56	40
57	23
58	128
59	29
60	130
61	31
62	136
63	53
64	138
65	55
66	160
67	61
68	162