A337157 - cp's OEIS frontend

A337157 a(n) is the smallest m such that A054024(m) = prime(n), where A054024(m) is A000203(m) mod m, or -1 if there is no such m.

n	a(n)
1	20
2	4
3	-1
4	8
5	21
6	27
7	39
8	36
9	57
10	115
11	32
12	155
13	63
14	50
15	129
16	235
17	265
18	371
19	305
20	201
21	98
22	365
23	237
24	171
25	245
26	291
27	485
28	309
29	325
30	327
31	128
32	189
33	279
34	917
35	1507
36	1529
37	242
38	785
39	489
40	835
41	865
42	1211
43	385
44	605
45	579
46	324
47	338
48	2321
49	669
50	1115
51	687
52	1165
53	399
54	1936

[20, 4, -1, 8, 21, 27, 39, 36, 57, 115, 32, 155, 63, 50, 129, 235, 265, 371, 305, 201, 98, 365, 237, 171, 245, 291, 485, 309, 325, 327, 128, 189, 279, 917, 1507, 1529, 242, 785, 489, 835, 865, 1211, 385, 605, 579, 324, 338, 2321, 669, 1115, 687, 1165, 399, 1936]

cp's OEIS Frontend

A337157 a(n) is the smallest m such that A054024(m) = prime(n), where A054024(m) is A000203(m) mod m, or -1 if there is no such m.

Table of values

List of values