A085981 - cp's OEIS frontend

A085981 Number of 7's in decimal expansion of prime(n).

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

[0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1]

cp's OEIS Frontend

A085981 Number of 7's in decimal expansion of prime(n).

Table of values

List of values

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

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

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