A257928 - cp's OEIS frontend

A257928 Least prime p such that pi(pn) = pi(qn)pi(rn) for some primes q and r with p > q > r, where pi(x) denotes the number of primes not exceeding x.

n	a(n)
1	13
2	7
3	13
4	67
5	19
6	79
7	47
8	193
9	107
10	41
11	229
12	179
13	383
14	281
15	173
16	1327
17	193
18	701
19	1429
20	211
21	113
22	73
23	1093
24	83
25	1447
26	659
27	197
28	719
29	331
30	761
31	1171
32	2269
33	467
34	509
35	863
36	113
37	643
38	577
39	563
40	379
41	607
42	1291
43	283
44	3593
45	2549
46	881
47	1523
48	4663
49	2657
50	3583
51	8807
52	683
53	2251
54	863
55	8929
56	163
57	6737
58	2459
59	4919
60	6553

[13, 7, 13, 67, 19, 79, 47, 193, 107, 41, 229, 179, 383, 281, 173, 1327, 193, 701, 1429, 211, 113, 73, 1093, 83, 1447, 659, 197, 719, 331, 761, 1171, 2269, 467, 509, 863, 113, 643, 577, 563, 379, 607, 1291, 283, 3593, 2549, 881, 1523, 4663, 2657, 3583, 8807, 683, 2251, 863, 8929, 163, 6737, 2459, 4919, 6553]

cp's OEIS Frontend

A257928 Least prime p such that pi(pn) = pi(qn)pi(rn) for some primes q and r with p > q > r, where pi(x) denotes the number of primes not exceeding x.

Table of values

List of values

cp's OEIS Frontend

A257928 Least prime p such that pi(p*n) = pi(q*n)*pi(r*n) for some primes q and r with p > q > r, where pi(x) denotes the number of primes not exceeding x.

Table of values

List of values

A257928 Least prime p such that pi(pn) = pi(qn)pi(rn) for some primes q and r with p > q > r, where pi(x) denotes the number of primes not exceeding x.