A154520 - cp's OEIS frontend

A154520 The prime(n)-th digit of the concatenated nonprimes.

n	a(n)
1	1
2	4
3	8
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	4
17	4
18	4
19	5
20	5
21	5
22	5
23	6
24	6
25	7
26	7
27	7
28	7
29	7
30	8
31	9
32	9
33	9
34	9
35	0
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	2
44	1
45	2
46	1
47	1
48	1
49	3
50	1
51	3
52	4
53	1
54	4
55	4
56	4
57	5
58	1
59	1
60	5
61	1
62	6
63	1
64	6
65	1
66	7
67	1
68	1
69	8
70	1
71	8
72	8
73	1
74	1
75	1
76	0
77	0
78	2
79	0
80	2
81	1
82	2
83	1
84	2
85	2
86	2
87	2
88	2
89	3
90	2
91	3
92	3
93	2
94	4
95	2
96	4
97	4
98	5
99	2
100	2
101	2
102	6
103	7
104	7
105	2

[1, 4, 8, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 7, 8, 9, 9, 9, 9, 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 3, 1, 3, 4, 1, 4, 4, 4, 5, 1, 1, 5, 1, 6, 1, 6, 1, 7, 1, 1, 8, 1, 8, 8, 1, 1, 1, 0, 0, 2, 0, 2, 1, 2, 1, 2, 2, 2, 2, 2, 3, 2, 3, 3, 2, 4, 2, 4, 4, 5, 2, 2, 2, 6, 7, 7, 2]

cp's OEIS Frontend

A154520 The prime(n)-th digit of the concatenated nonprimes.

Table of values

List of values

n	a(n)
1	1
2	4
3	8
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	4
17	4
18	4
19	5
20	5
21	5
22	5
23	6
24	6
25	7
26	7
27	7
28	7
29	7
30	8
31	9
32	9
33	9
34	9
35	0
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	2
44	1
45	2
46	1
47	1
48	1
49	3
50	1
51	3
52	4
53	1
54	4
55	4
56	4
57	5
58	1
59	1
60	5
61	1
62	6
63	1
64	6
65	1
66	7
67	1
68	1
69	8
70	1
71	8
72	8
73	1
74	1
75	1
76	0
77	0
78	2
79	0
80	2
81	1
82	2
83	1
84	2
85	2
86	2
87	2
88	2
89	3
90	2
91	3
92	3
93	2
94	4
95	2
96	4
97	4
98	5
99	2
100	2
101	2
102	6
103	7
104	7
105	2

n	a(n)
1	1
2	4
3	8
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	4
17	4
18	4
19	5
20	5
21	5
22	5
23	6
24	6
25	7
26	7
27	7
28	7
29	7
30	8
31	9
32	9
33	9
34	9
35	0
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	2
44	1
45	2
46	1
47	1
48	1
49	3
50	1
51	3
52	4
53	1
54	4
55	4
56	4
57	5
58	1
59	1
60	5
61	1
62	6
63	1
64	6
65	1
66	7
67	1
68	1
69	8
70	1
71	8
72	8
73	1
74	1
75	1
76	0
77	0
78	2
79	0
80	2
81	1
82	2
83	1
84	2
85	2
86	2
87	2
88	2
89	3
90	2
91	3
92	3
93	2
94	4
95	2
96	4
97	4
98	5
99	2
100	2
101	2
102	6
103	7
104	7
105	2

n	a(n)
1	1
2	4
3	8
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	3
16	4
17	4
18	4
19	5
20	5
21	5
22	5
23	6
24	6
25	7
26	7
27	7
28	7
29	7
30	8
31	9
32	9
33	9
34	9
35	0
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	2
44	1
45	2
46	1
47	1
48	1
49	3
50	1
51	3
52	4
53	1
54	4
55	4
56	4
57	5
58	1
59	1
60	5
61	1
62	6
63	1
64	6
65	1
66	7
67	1
68	1
69	8
70	1
71	8
72	8
73	1
74	1
75	1
76	0
77	0
78	2
79	0
80	2
81	1
82	2
83	1
84	2
85	2
86	2
87	2
88	2
89	3
90	2
91	3
92	3
93	2
94	4
95	2
96	4
97	4
98	5
99	2
100	2
101	2
102	6
103	7
104	7
105	2