A336519 - cp's OEIS frontend

A336519 Primes in Pi (variant of A336520): a(n) is the smallest prime factor of A090897(n) that does not appear in earlier terms of a, or 1, if no such factor exists.

n	a(n)
1	3
2	2
3	53
4	7
5	58979
6	161923
7	2643383
8	1746893
9	6971
10	5
11	17
12	1499
13	11
14	1555077581737
15	297707
16	13
17	37
18	126541
19	2130276389911155737
20	1429
21	71971
22	383
23	61
24	1559
25	29
26	193
27	12073
28	698543
29	157
30	20289606809
31	23687
32	1249
33	59
34	2393
35	251
36	101
37	15827173
38	82351
39	661

[3, 2, 53, 7, 58979, 161923, 2643383, 1746893, 6971, 5, 17, 1499, 11, 1555077581737, 297707, 13, 37, 126541, 2130276389911155737, 1429, 71971, 383, 61, 1559, 29, 193, 12073, 698543, 157, 20289606809, 23687, 1249, 59, 2393, 251, 101, 15827173, 82351, 661]

cp's OEIS Frontend

A336519 Primes in Pi (variant of A336520): a(n) is the smallest prime factor of A090897(n) that does not appear in earlier terms of a, or 1, if no such factor exists.

Table of values

List of values