A345753 - cp's OEIS frontend

A345753 Euler-Fibonacci pseudoprimes: odd composites k such that F(k) == 5^((k-1)/2) == +-1 (mod k), where F(k) = A000045(k), the Fibonacci numbers.

n	a(n)
1	146611
2	252601
3	399001
4	512461
5	556421
6	852841
7	1024651
8	1193221
9	1314631
10	1857241
11	1909001
12	2100901
13	2165801
14	2603381
15	2704801
16	3470921
17	3828001
18	3942271
19	4504501
20	5049001
21	5148001
22	5481451
23	6189121
24	6840001
25	7267051
26	7519441
27	7879681
28	8086231
29	8341201
30	8719921
31	9439201
32	9863461

[146611, 252601, 399001, 512461, 556421, 852841, 1024651, 1193221, 1314631, 1857241, 1909001, 2100901, 2165801, 2603381, 2704801, 3470921, 3828001, 3942271, 4504501, 5049001, 5148001, 5481451, 6189121, 6840001, 7267051, 7519441, 7879681, 8086231, 8341201, 8719921, 9439201, 9863461]

cp's OEIS Frontend

A345753 Euler-Fibonacci pseudoprimes: odd composites k such that F(k) == 5^((k-1)/2) == +-1 (mod k), where F(k) = A000045(k), the Fibonacci numbers.

Table of values

List of values