A175530 - cp's OEIS frontend

A175530 Pseudoprime Chebyshev numbers: odd composite integers n such that T_n(a) == a (mod n) for all integers a, where T(x) is Chebyshev polynomial of first kind.

n	a(n)
1	7056721
2	79397009999
3	443372888629441
4	582920080863121
5	2491924062668039
6	14522256850701599
7	39671149333495681
8	242208715337316001
9	729921147126771599
10	842526563598720001
11	1881405190466524799
12	2380296518909971201
13	3188618003602886401
14	33711266676317630401
15	54764632857801026161
16	55470688965343048319
17	72631455338727028799
18	122762671289519184001
19	361266866679292635601
20	734097107648270852639

[7056721, 79397009999, 443372888629441, 582920080863121, 2491924062668039, 14522256850701599, 39671149333495681, 242208715337316001, 729921147126771599, 842526563598720001, 1881405190466524799, 2380296518909971201, 3188618003602886401, 33711266676317630401, 54764632857801026161, 55470688965343048319, 72631455338727028799, 122762671289519184001, 361266866679292635601, 734097107648270852639]

cp's OEIS Frontend

A175530 Pseudoprime Chebyshev numbers: odd composite integers n such that T_n(a) == a (mod n) for all integers a, where T(x) is Chebyshev polynomial of first kind.

Table of values

List of values