A031015 - cp's OEIS frontend

A031015 a(n)=least k such that base 7 representation of n begins at s(k), where s=A031007.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	20
8	8
9	1
10	12
11	14
12	16
13	18
14	34
15	11
16	24
17	2
18	28
19	30
20	32
21	48
22	13
23	27
24	40
25	3
26	44
27	46
28	62
29	15
30	29
31	43
32	56
33	4
34	60
35	76
36	17
37	31
38	45
39	59
40	72
41	5
42	6
43	19
44	33
45	47
46	61
47	75
48	88
49	237
50	94
51	20
52	153
53	174
54	195
55	216
56	93
57	8
58	9
59	119
60	122
61	125
62	128
63	96

[1, 2, 3, 4, 5, 6, 20, 8, 1, 12, 14, 16, 18, 34, 11, 24, 2, 28, 30, 32, 48, 13, 27, 40, 3, 44, 46, 62, 15, 29, 43, 56, 4, 60, 76, 17, 31, 45, 59, 72, 5, 6, 19, 33, 47, 61, 75, 88, 237, 94, 20, 153, 174, 195, 216, 93, 8, 9, 119, 122, 125, 128, 96]

cp's OEIS Frontend

A031015 a(n)=least k such that base 7 representation of n begins at s(k), where s=A031007.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	20
8	8
9	1
10	12
11	14
12	16
13	18
14	34
15	11
16	24
17	2
18	28
19	30
20	32
21	48
22	13
23	27
24	40
25	3
26	44
27	46
28	62
29	15
30	29
31	43
32	56
33	4
34	60
35	76
36	17
37	31
38	45
39	59
40	72
41	5
42	6
43	19
44	33
45	47
46	61
47	75
48	88
49	237
50	94
51	20
52	153
53	174
54	195
55	216
56	93
57	8
58	9
59	119
60	122
61	125
62	128
63	96

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	20
8	8
9	1
10	12
11	14
12	16
13	18
14	34
15	11
16	24
17	2
18	28
19	30
20	32
21	48
22	13
23	27
24	40
25	3
26	44
27	46
28	62
29	15
30	29
31	43
32	56
33	4
34	60
35	76
36	17
37	31
38	45
39	59
40	72
41	5
42	6
43	19
44	33
45	47
46	61
47	75
48	88
49	237
50	94
51	20
52	153
53	174
54	195
55	216
56	93
57	8
58	9
59	119
60	122
61	125
62	128
63	96

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	20
8	8
9	1
10	12
11	14
12	16
13	18
14	34
15	11
16	24
17	2
18	28
19	30
20	32
21	48
22	13
23	27
24	40
25	3
26	44
27	46
28	62
29	15
30	29
31	43
32	56
33	4
34	60
35	76
36	17
37	31
38	45
39	59
40	72
41	5
42	6
43	19
44	33
45	47
46	61
47	75
48	88
49	237
50	94
51	20
52	153
53	174
54	195
55	216
56	93
57	8
58	9
59	119
60	122
61	125
62	128
63	96