A269326 - cp's OEIS frontend

A269326 Let k be a number which is simultaneously Sierpiński and Riesel, and let P be a set of primes which cover every number of the form k2^m + 1 and of the form k2^m - 1 with m >= 1. Sequence shows elements of the set P which has the property that the product of its primes is as small as it is possible.

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	19
8	31
9	37
10	41
11	61
12	73
13	97
14	109
15	151
16	241
17	257
18	331

[3, 5, 7, 11, 13, 17, 19, 31, 37, 41, 61, 73, 97, 109, 151, 241, 257, 331]