A269253 - cp's OEIS frontend

A269253 Smallest prime in the sequence s(k) = n*s(k-1) - s(k-2), with s(0) = 1, s(1) = n + 1 (or -1 if no such prime exists).

n	a(n)
1	2
2	3
3	11
4	5
5	29
6	7
7	-1
8	71
9	89
10	11
11	131
12	13
13	181
14	-1
15	239
16	17
17	5167
18	19
19	379
20	419
21	461
22	23
23	-1
24	599
25	251894449
26	701
27	20357
28	29
29	25171
30	31
31	991
32	36002209323169
33	47468744103199
34	-1
35	1259
36	37
37	2625505273
38	1481
39	1559
40	41
41	1721
42	43
43	150103799
44	1979
45	2069
46	47
47	-1
48	2351
49	287762399

[2, 3, 11, 5, 29, 7, -1, 71, 89, 11, 131, 13, 181, -1, 239, 17, 5167, 19, 379, 419, 461, 23, -1, 599, 251894449, 701, 20357, 29, 25171, 31, 991, 36002209323169, 47468744103199, -1, 1259, 37, 2625505273, 1481, 1559, 41, 1721, 43, 150103799, 1979, 2069, 47, -1, 2351, 287762399]

cp's OEIS Frontend

A269253 Smallest prime in the sequence s(k) = n*s(k-1) - s(k-2), with s(0) = 1, s(1) = n + 1 (or -1 if no such prime exists).

Table of values

List of values