A337428 - cp's OEIS frontend

A337428 a(n) is the least prime of the form (3^r5^s7^t + 1)/2, r, s, t > 0, r + s + t = n.

n	a(n)
3	53
4	263
5	1103
6	6563
7	4253
8	49613
9	38273
10	1041863
11	344453
12	60775313
13	109395563
14	119601563
15	151903553
16	325507613
17	3797588813
18	202622460863
19	17437907813
20	11299764263
21	20339575673
22	282494106563
23	1186475247563
24	5932376237813
25	29661881189063
26	8237528147363
27	14827550665253

[53, 263, 1103, 6563, 4253, 49613, 38273, 1041863, 344453, 60775313, 109395563, 119601563, 151903553, 325507613, 3797588813, 202622460863, 17437907813, 11299764263, 20339575673, 282494106563, 1186475247563, 5932376237813, 29661881189063, 8237528147363, 14827550665253]

cp's OEIS Frontend

A337428 a(n) is the least prime of the form (3^r5^s7^t + 1)/2, r, s, t > 0, r + s + t = n.

Table of values

List of values

cp's OEIS Frontend

A337428 a(n) is the least prime of the form (3^r*5^s*7^t + 1)/2, r, s, t > 0, r + s + t = n.

Table of values

List of values

A337428 a(n) is the least prime of the form (3^r5^s7^t + 1)/2, r, s, t > 0, r + s + t = n.