A220274 - cp's OEIS frontend

A220274 a(n) is the smallest number such that for all N >= a(n) there are at least n primes between 9N and 10N.

n	a(n)
1	2
2	14
3	23
4	23
5	34
6	36
7	57
8	58
9	60
10	60
11	77
12	86
13	100
14	100
15	102
16	123
17	149
18	149
19	149
20	149
21	187
22	187
23	200
24	200
25	200
26	202
27	209
28	227
29	234
30	268
31	269
32	269
33	270
34	319
35	319
36	331
37	332
38	332
39	333
40	345
41	347
42	350
43	350
44	353
45	359
46	360
47	377
48	401
49	421
50	440
51	449
52	479
53	479
54	487
55	491

[2, 14, 23, 23, 34, 36, 57, 58, 60, 60, 77, 86, 100, 100, 102, 123, 149, 149, 149, 149, 187, 187, 200, 200, 200, 202, 209, 227, 234, 268, 269, 269, 270, 319, 319, 331, 332, 332, 333, 345, 347, 350, 350, 353, 359, 360, 377, 401, 421, 440, 449, 479, 479, 487, 491]

cp's OEIS Frontend

A220274 a(n) is the smallest number such that for all N >= a(n) there are at least n primes between 9N and 10N.

Table of values

List of values

n	a(n)
1	2
2	14
3	23
4	23
5	34
6	36
7	57
8	58
9	60
10	60
11	77
12	86
13	100
14	100
15	102
16	123
17	149
18	149
19	149
20	149
21	187
22	187
23	200
24	200
25	200
26	202
27	209
28	227
29	234
30	268
31	269
32	269
33	270
34	319
35	319
36	331
37	332
38	332
39	333
40	345
41	347
42	350
43	350
44	353
45	359
46	360
47	377
48	401
49	421
50	440
51	449
52	479
53	479
54	487
55	491

n	a(n)
1	2
2	14
3	23
4	23
5	34
6	36
7	57
8	58
9	60
10	60
11	77
12	86
13	100
14	100
15	102
16	123
17	149
18	149
19	149
20	149
21	187
22	187
23	200
24	200
25	200
26	202
27	209
28	227
29	234
30	268
31	269
32	269
33	270
34	319
35	319
36	331
37	332
38	332
39	333
40	345
41	347
42	350
43	350
44	353
45	359
46	360
47	377
48	401
49	421
50	440
51	449
52	479
53	479
54	487
55	491

cp's OEIS Frontend

A220274 a(n) is the smallest number such that for all N >= a(n) there are at least n primes between 9*N and 10*N.

Table of values

List of values

A220274 a(n) is the smallest number such that for all N >= a(n) there are at least n primes between 9N and 10N.

n	a(n)
1	2
2	14
3	23
4	23
5	34
6	36
7	57
8	58
9	60
10	60
11	77
12	86
13	100
14	100
15	102
16	123
17	149
18	149
19	149
20	149
21	187
22	187
23	200
24	200
25	200
26	202
27	209
28	227
29	234
30	268
31	269
32	269
33	270
34	319
35	319
36	331
37	332
38	332
39	333
40	345
41	347
42	350
43	350
44	353
45	359
46	360
47	377
48	401
49	421
50	440
51	449
52	479
53	479
54	487
55	491