A292847 - cp's OEIS frontend

A292847 a(n) is the smallest odd prime of the form ((1 + sqrt(2n))^k - (1 - sqrt(2n))^k)/(2sqrt(2n)).

n	a(n)
1	5
2	7
3	101
4	11
5	13
6	269
7	17
8	19
9	509
10	23
11	709
12	821
13	29
14	31
15	46957
16	55399
17	37
18	168846239
19	41
20	43
21	9177868096974864412935432937651459122761
22	47
23	485329129
24	2789
25	53
26	3229
27	3461
28	59
29	61
30	1563353111
31	139237612541
32	67
33	5021
34	71
35	73
36	484639
37	6221
38	79
39	6869
40	83
41	7549

[5, 7, 101, 11, 13, 269, 17, 19, 509, 23, 709, 821, 29, 31, 46957, 55399, 37, 168846239, 41, 43, 9177868096974864412935432937651459122761, 47, 485329129, 2789, 53, 3229, 3461, 59, 61, 1563353111, 139237612541, 67, 5021, 71, 73, 484639, 6221, 79, 6869, 83, 7549]

cp's OEIS Frontend

A292847 a(n) is the smallest odd prime of the form ((1 + sqrt(2n))^k - (1 - sqrt(2n))^k)/(2sqrt(2n)).

Table of values

List of values

cp's OEIS Frontend

A292847 a(n) is the smallest odd prime of the form ((1 + sqrt(2*n))^k - (1 - sqrt(2*n))^k)/(2*sqrt(2*n)).

Table of values

List of values

A292847 a(n) is the smallest odd prime of the form ((1 + sqrt(2n))^k - (1 - sqrt(2n))^k)/(2sqrt(2n)).