A031311 - cp's OEIS frontend

A031311 a(n)=least k such that base 10 representation of n begins at s(k), where s=A031310.

n	a(n)
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	11
10	8
11	166
12	147
13	127
14	107
15	87
16	67
17	47
18	27
19	150
20	148
21	7
22	144
23	125
24	105
25	85
26	65
27	45
28	25
29	130
30	128
31	126
32	6
33	122
34	103
35	83
36	63
37	43
38	23
39	110
40	108
41	106
42	104
43	5
44	100
45	81
46	61
47	41
48	21
49	90
50	88
51	86
52	84
53	82
54	4
55	78
56	59
57	39
58	19
59	70
60	68

[8, 7, 6, 5, 4, 3, 2, 1, 11, 8, 166, 147, 127, 107, 87, 67, 47, 27, 150, 148, 7, 144, 125, 105, 85, 65, 45, 25, 130, 128, 126, 6, 122, 103, 83, 63, 43, 23, 110, 108, 106, 104, 5, 100, 81, 61, 41, 21, 90, 88, 86, 84, 82, 4, 78, 59, 39, 19, 70, 68]

cp's OEIS Frontend

A031311 a(n)=least k such that base 10 representation of n begins at s(k), where s=A031310.

Table of values

List of values

n	a(n)
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	11
10	8
11	166
12	147
13	127
14	107
15	87
16	67
17	47
18	27
19	150
20	148
21	7
22	144
23	125
24	105
25	85
26	65
27	45
28	25
29	130
30	128
31	126
32	6
33	122
34	103
35	83
36	63
37	43
38	23
39	110
40	108
41	106
42	104
43	5
44	100
45	81
46	61
47	41
48	21
49	90
50	88
51	86
52	84
53	82
54	4
55	78
56	59
57	39
58	19
59	70
60	68

n	a(n)
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	11
10	8
11	166
12	147
13	127
14	107
15	87
16	67
17	47
18	27
19	150
20	148
21	7
22	144
23	125
24	105
25	85
26	65
27	45
28	25
29	130
30	128
31	126
32	6
33	122
34	103
35	83
36	63
37	43
38	23
39	110
40	108
41	106
42	104
43	5
44	100
45	81
46	61
47	41
48	21
49	90
50	88
51	86
52	84
53	82
54	4
55	78
56	59
57	39
58	19
59	70
60	68

n	a(n)
1	8
2	7
3	6
4	5
5	4
6	3
7	2
8	1
9	11
10	8
11	166
12	147
13	127
14	107
15	87
16	67
17	47
18	27
19	150
20	148
21	7
22	144
23	125
24	105
25	85
26	65
27	45
28	25
29	130
30	128
31	126
32	6
33	122
34	103
35	83
36	63
37	43
38	23
39	110
40	108
41	106
42	104
43	5
44	100
45	81
46	61
47	41
48	21
49	90
50	88
51	86
52	84
53	82
54	4
55	78
56	59
57	39
58	19
59	70
60	68