A102830 - cp's OEIS frontend

A102830 "True already", base 4, start 1: a(n) is the least integer such that the sequence up to a(n-1) written in base 4 contains floor(a(n)/4) copies of the digit a(n) % 4, with a(0) = 1.

n	a(n)
0	1
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	15
9	21
10	22
11	23
12	26
13	27
14	31
15	38
16	39
17	43
18	47
19	55
20	62
21	66
22	70
23	71
24	74
25	75
26	79
27	86
28	87
29	90
30	91
31	95
32	102
33	103
34	107
35	111
36	119
37	126
38	130
39	135
40	139
41	143
42	151
43	155
44	159
45	167
46	171
47	175
48	183
49	191
50	203
51	210
52	214
53	218
54	223
55	226
56	234
57	237
58	241
59	245
60	250

[1, 2, 3, 5, 6, 7, 10, 11, 15, 21, 22, 23, 26, 27, 31, 38, 39, 43, 47, 55, 62, 66, 70, 71, 74, 75, 79, 86, 87, 90, 91, 95, 102, 103, 107, 111, 119, 126, 130, 135, 139, 143, 151, 155, 159, 167, 171, 175, 183, 191, 203, 210, 214, 218, 223, 226, 234, 237, 241, 245, 250]

cp's OEIS Frontend

A102830 "True already", base 4, start 1: a(n) is the least integer such that the sequence up to a(n-1) written in base 4 contains floor(a(n)/4) copies of the digit a(n) % 4, with a(0) = 1.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	15
9	21
10	22
11	23
12	26
13	27
14	31
15	38
16	39
17	43
18	47
19	55
20	62
21	66
22	70
23	71
24	74
25	75
26	79
27	86
28	87
29	90
30	91
31	95
32	102
33	103
34	107
35	111
36	119
37	126
38	130
39	135
40	139
41	143
42	151
43	155
44	159
45	167
46	171
47	175
48	183
49	191
50	203
51	210
52	214
53	218
54	223
55	226
56	234
57	237
58	241
59	245
60	250

n	a(n)
0	1
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	15
9	21
10	22
11	23
12	26
13	27
14	31
15	38
16	39
17	43
18	47
19	55
20	62
21	66
22	70
23	71
24	74
25	75
26	79
27	86
28	87
29	90
30	91
31	95
32	102
33	103
34	107
35	111
36	119
37	126
38	130
39	135
40	139
41	143
42	151
43	155
44	159
45	167
46	171
47	175
48	183
49	191
50	203
51	210
52	214
53	218
54	223
55	226
56	234
57	237
58	241
59	245
60	250

n	a(n)
0	1
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	15
9	21
10	22
11	23
12	26
13	27
14	31
15	38
16	39
17	43
18	47
19	55
20	62
21	66
22	70
23	71
24	74
25	75
26	79
27	86
28	87
29	90
30	91
31	95
32	102
33	103
34	107
35	111
36	119
37	126
38	130
39	135
40	139
41	143
42	151
43	155
44	159
45	167
46	171
47	175
48	183
49	191
50	203
51	210
52	214
53	218
54	223
55	226
56	234
57	237
58	241
59	245
60	250