A112863 - cp's OEIS frontend

A112863 Numbers k such that (2k)!/(2(k!)^2)+1 is prime.

n	a(n)
1	1
2	3
3	5
4	6
5	14
6	19
7	24
8	45
9	49
10	62
11	72
12	122
13	149
14	197
15	209
16	222
17	349
18	409
19	491
20	527
21	601
22	675
23	728
24	769
25	795
26	853
27	1039
28	1318
29	1599
30	2069
31	2279
32	2567
33	2634
34	3286
35	3482
36	6880
37	6919
38	9117
39	9276
40	9564
41	10898
42	13061
43	14570
44	16493
45	17366
46	18773
47	19901
48	25569
49	26611
50	28322

[1, 3, 5, 6, 14, 19, 24, 45, 49, 62, 72, 122, 149, 197, 209, 222, 349, 409, 491, 527, 601, 675, 728, 769, 795, 853, 1039, 1318, 1599, 2069, 2279, 2567, 2634, 3286, 3482, 6880, 6919, 9117, 9276, 9564, 10898, 13061, 14570, 16493, 17366, 18773, 19901, 25569, 26611, 28322]

cp's OEIS Frontend

A112863 Numbers k such that (2k)!/(2(k!)^2)+1 is prime.

Table of values

List of values

cp's OEIS Frontend

A112863 Numbers k such that (2*k)!/(2*(k!)^2)+1 is prime.

Table of values

List of values

A112863 Numbers k such that (2k)!/(2(k!)^2)+1 is prime.