A304905 - cp's OEIS frontend

A304905 Greatest difference d such that both n^2 - d and n^2 + d are primes.

n	a(n)
2	1
3	4
4	13
5	22
6	31
7	30
8	45
9	76
10	97
11	118
12	139
13	162
14	193
15	218
16	253
17	282
18	319
19	358
20	397
21	436
22	453
23	522
24	553
25	612
26	645
27	724
28	765
29	828
30	889
31	918
32	1005
33	1072
34	1153
35	1222
36	1283
37	1362
38	1413
39	1516
40	1587
41	1678
42	1753
43	1842
44	1917

[1, 4, 13, 22, 31, 30, 45, 76, 97, 118, 139, 162, 193, 218, 253, 282, 319, 358, 397, 436, 453, 522, 553, 612, 645, 724, 765, 828, 889, 918, 1005, 1072, 1153, 1222, 1283, 1362, 1413, 1516, 1587, 1678, 1753, 1842, 1917]

cp's OEIS Frontend

A304905 Greatest difference d such that both n^2 - d and n^2 + d are primes.

Table of values

List of values