A337425 - cp's OEIS frontend

A337425 a(n) is the least prime of the form (3^j*5^k + 1)/2, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.

n	a(n)
2	0
3	23
4	113
5	563
6	1013
7	1823
8	70313
9	351563
10	82013
11	410063
12	43945313
13	1328603
14	18452813
15	1977539063
16	0
17	830376563
18	538084013
19	968551223
20	13452100313
21	1441625976563
22	43584805013
23	2145767211914063
24	0
25	0
26	9806581127813
27	6354664570823
28	681012578320313
29	441296150751563
30	0

[0, 23, 113, 563, 1013, 1823, 70313, 351563, 82013, 410063, 43945313, 1328603, 18452813, 1977539063, 0, 830376563, 538084013, 968551223, 13452100313, 1441625976563, 43584805013, 2145767211914063, 0, 0, 9806581127813, 6354664570823, 681012578320313, 441296150751563, 0]

cp's OEIS Frontend

A337425 a(n) is the least prime of the form (3^j*5^k + 1)/2, j > 0, k > 0, j + k = n. a(n) = 0 if no such prime exists.

Table of values

List of values