A075227 - cp's OEIS frontend

A075227 Smallest odd prime not occurring in the numerator of any of the 2^n subset sums generated from the set 1/1, 1/2, 1/3, ..., 1/n.

n	a(n)
1	3
2	5
3	7
4	17
5	37
6	43
7	43
8	151
9	151
10	409
11	491
12	491
13	491
14	1087
15	2011
16	3709
17	3709
18	7417
19	7417
20	7417
21	19699
22	30139
23	35573
24	35573
25	40237
26	40237
27	132151
28	132151
29	158551
30	158551
31	245639
32	245639
33	961459
34	1674769
35	1674769
36	1674769
37	1674769
38	4339207

[3, 5, 7, 17, 37, 43, 43, 151, 151, 409, 491, 491, 491, 1087, 2011, 3709, 3709, 7417, 7417, 7417, 19699, 30139, 35573, 35573, 40237, 40237, 132151, 132151, 158551, 158551, 245639, 245639, 961459, 1674769, 1674769, 1674769, 1674769, 4339207]

cp's OEIS Frontend

A075227 Smallest odd prime not occurring in the numerator of any of the 2^n subset sums generated from the set 1/1, 1/2, 1/3, ..., 1/n.

Table of values

List of values