A321795 - cp's OEIS frontend

A321795 Numbers m such that m^2+1 is prime with (m-1)^2+1 and (m+1)^2+1 semiprimes.

n	a(n)
1	4
2	10
3	170
4	570
5	780
6	950
7	1420
8	2380
9	2730
10	3850
11	4120
12	4300
13	5850
14	6360
15	6460
16	6800
17	6970
18	7100
19	7240
20	8720
21	9630
22	10150
23	10580
24	11010
25	11170
26	11830
27	12300
28	14290
29	16330
30	17670
31	17810
32	17850
33	17860
34	18940
35	19030
36	20500
37	21930
38	23960
39	24490
40	25830
41	26050

[4, 10, 170, 570, 780, 950, 1420, 2380, 2730, 3850, 4120, 4300, 5850, 6360, 6460, 6800, 6970, 7100, 7240, 8720, 9630, 10150, 10580, 11010, 11170, 11830, 12300, 14290, 16330, 17670, 17810, 17850, 17860, 18940, 19030, 20500, 21930, 23960, 24490, 25830, 26050]

cp's OEIS Frontend

A321795 Numbers m such that m^2+1 is prime with (m-1)^2+1 and (m+1)^2+1 semiprimes.

Table of values

List of values