A180471 - cp's OEIS frontend

A180471 Irregular triangle in which row n has all primes q such that prime(n)*q is a base-2 Fermat pseudoprime.

n	a(n)
5	31
6	257
7	73
8	89
9	683
10	113
11	11
12	151
13	331
14	73
15	109
16	61681
17	127
18	337
19	5419
20	178481
21	2796203
22	157
23	1613
24	233
25	1103
26	2089
27	3033169
28	1321
29	20857
30	599479
31	281
32	86171
33	122921
34	19
35	37
36	109
37	433
38	38737
39	2731
40	8191
41	121369
42	22366891
43	13367
44	164511353
45	8831418697
46	23
47	353
48	397
49	683
50	2113
51	2931542417

[31, 257, 73, 89, 683, 113, 11, 151, 331, 73, 109, 61681, 127, 337, 5419, 178481, 2796203, 157, 1613, 233, 1103, 2089, 3033169, 1321, 20857, 599479, 281, 86171, 122921, 19, 37, 109, 433, 38737, 2731, 8191, 121369, 22366891, 13367, 164511353, 8831418697, 23, 353, 397, 683, 2113, 2931542417]

cp's OEIS Frontend

A180471 Irregular triangle in which row n has all primes q such that prime(n)*q is a base-2 Fermat pseudoprime.

Table of values

List of values