A192821 - cp's OEIS frontend

A192821 3-Ramanujan primes; the interval (x/2,x] has at least n 2-Ramanujan primes for x >= a(n) but not for x = a(n)-1.

n	a(n)
1	41
2	149
3	227
4	229
5	233
6	569
7	571
8	587
9	593
10	641
11	643
12	821
13	937
14	941
15	1367
16	1373
17	1423
18	1439
19	1481
20	1549
21	1553
22	2207
23	2237
24	2239
25	2267
26	2269
27	2273
28	2281
29	2333
30	2339
31	2347
32	2377
33	2617
34	2657
35	3251
36	3257
37	3259
38	3299
39	3343
40	3347
41	3449
42	3581
43	3583
44	3607
45	3613

[41, 149, 227, 229, 233, 569, 571, 587, 593, 641, 643, 821, 937, 941, 1367, 1373, 1423, 1439, 1481, 1549, 1553, 2207, 2237, 2239, 2267, 2269, 2273, 2281, 2333, 2339, 2347, 2377, 2617, 2657, 3251, 3257, 3259, 3299, 3343, 3347, 3449, 3581, 3583, 3607, 3613]

cp's OEIS Frontend

A192821 3-Ramanujan primes; the interval (x/2,x] has at least n 2-Ramanujan primes for x >= a(n) but not for x = a(n)-1.

Table of values

List of values