A173979 - cp's OEIS frontend

A173979 a(n) is the smallest number m from A173977 for which A020639(2m-1) = prime(n).

n	a(n)
2	5
3	13
4	25
5	127
6	85
7	196
8	181
9	472
10	421
11	946
12	685
13	1210
14	925
15	1105
16	1882
17	3157
18	1861
19	2446
20	2521
21	3541
22	4306
23	4690
24	3961
25	6160
26	5707
27	5305
28	5725
29	6922
30	9436
31	8065
32	8581
33	10207
34	9661
35	13336
36	12307
37	12796
38	14752
39	18955
40	14965

[5, 13, 25, 127, 85, 196, 181, 472, 421, 946, 685, 1210, 925, 1105, 1882, 3157, 1861, 2446, 2521, 3541, 4306, 4690, 3961, 6160, 5707, 5305, 5725, 6922, 9436, 8065, 8581, 10207, 9661, 13336, 12307, 12796, 14752, 18955, 14965]

cp's OEIS Frontend

A173979 a(n) is the smallest number m from A173977 for which A020639(2m-1) = prime(n).

Table of values

List of values