A220954 - cp's OEIS frontend

A220954 Primes p such that floor(sqrt(2) + sqrt(3) + sqrt(5) + ... + sqrt(p)) is prime.

n	a(n)
1	3
2	5
3	11
4	17
5	19
6	73
7	83
8	109
9	179
10	211
11	269
12	271
13	283
14	373
15	557
16	571
17	587
18	607
19	661
20	677
21	809
22	953
23	997
24	1013
25	1031
26	1033
27	1087
28	1093
29	1151
30	1171
31	1217
32	1249
33	1289
34	1301
35	1427
36	1439
37	1447
38	1453
39	1549
40	1613
41	1621
42	1867
43	1877
44	1949
45	2179
46	2347
47	2393
48	2467

[3, 5, 11, 17, 19, 73, 83, 109, 179, 211, 269, 271, 283, 373, 557, 571, 587, 607, 661, 677, 809, 953, 997, 1013, 1031, 1033, 1087, 1093, 1151, 1171, 1217, 1249, 1289, 1301, 1427, 1439, 1447, 1453, 1549, 1613, 1621, 1867, 1877, 1949, 2179, 2347, 2393, 2467]

cp's OEIS Frontend

A220954 Primes p such that floor(sqrt(2) + sqrt(3) + sqrt(5) + ... + sqrt(p)) is prime.

Table of values

List of values