A030378 - cp's OEIS frontend

A030378 Least k such that base 4 representation of n begins at s(k), where s=A030373.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	1
7	10
8	12
9	9
10	16
11	2
12	20
13	3
14	11
15	19
16	28
17	4
18	34
19	37
20	33
21	6
22	7
23	49
24	52
25	8
26	15
27	1
28	64
29	50
30	10
31	73
32	76
33	53
34	12
35	85
36	36
37	48
38	14
39	9
40	84
41	59
42	16
43	17
44	112
45	2
46	110
47	18
48	124
49	65
50	113
51	20
52	3
53	39
54	51
55	22
56	11
57	71
58	99
59	24
60	19
61	26
62	74
63	122
64	172

[1, 2, 3, 4, 6, 1, 10, 12, 9, 16, 2, 20, 3, 11, 19, 28, 4, 34, 37, 33, 6, 7, 49, 52, 8, 15, 1, 64, 50, 10, 73, 76, 53, 12, 85, 36, 48, 14, 9, 84, 59, 16, 17, 112, 2, 110, 18, 124, 65, 113, 20, 3, 39, 51, 22, 11, 71, 99, 24, 19, 26, 74, 122, 172]

cp's OEIS Frontend

A030378 Least k such that base 4 representation of n begins at s(k), where s=A030373.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	1
7	10
8	12
9	9
10	16
11	2
12	20
13	3
14	11
15	19
16	28
17	4
18	34
19	37
20	33
21	6
22	7
23	49
24	52
25	8
26	15
27	1
28	64
29	50
30	10
31	73
32	76
33	53
34	12
35	85
36	36
37	48
38	14
39	9
40	84
41	59
42	16
43	17
44	112
45	2
46	110
47	18
48	124
49	65
50	113
51	20
52	3
53	39
54	51
55	22
56	11
57	71
58	99
59	24
60	19
61	26
62	74
63	122
64	172

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	1
7	10
8	12
9	9
10	16
11	2
12	20
13	3
14	11
15	19
16	28
17	4
18	34
19	37
20	33
21	6
22	7
23	49
24	52
25	8
26	15
27	1
28	64
29	50
30	10
31	73
32	76
33	53
34	12
35	85
36	36
37	48
38	14
39	9
40	84
41	59
42	16
43	17
44	112
45	2
46	110
47	18
48	124
49	65
50	113
51	20
52	3
53	39
54	51
55	22
56	11
57	71
58	99
59	24
60	19
61	26
62	74
63	122
64	172

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	1
7	10
8	12
9	9
10	16
11	2
12	20
13	3
14	11
15	19
16	28
17	4
18	34
19	37
20	33
21	6
22	7
23	49
24	52
25	8
26	15
27	1
28	64
29	50
30	10
31	73
32	76
33	53
34	12
35	85
36	36
37	48
38	14
39	9
40	84
41	59
42	16
43	17
44	112
45	2
46	110
47	18
48	124
49	65
50	113
51	20
52	3
53	39
54	51
55	22
56	11
57	71
58	99
59	24
60	19
61	26
62	74
63	122
64	172