A087788 - cp's OEIS frontend

A087788 3-Carmichael numbers: Carmichael numbers equal to the product of 3 primes: k = pqr, where p < q < r are primes such that a^(k-1) == 1 (mod k) if a is prime to k.

n	a(n)
1	561
2	1105
3	1729
4	2465
5	2821
6	6601
7	8911
8	10585
9	15841
10	29341
11	46657
12	52633
13	115921
14	162401
15	252601
16	294409
17	314821
18	334153
19	399001
20	410041
21	488881
22	512461
23	530881
24	1024651
25	1152271
26	1193221
27	1461241
28	1615681
29	1857241
30	1909001
31	2508013

[561, 1105, 1729, 2465, 2821, 6601, 8911, 10585, 15841, 29341, 46657, 52633, 115921, 162401, 252601, 294409, 314821, 334153, 399001, 410041, 488881, 512461, 530881, 1024651, 1152271, 1193221, 1461241, 1615681, 1857241, 1909001, 2508013]

cp's OEIS Frontend

A087788 3-Carmichael numbers: Carmichael numbers equal to the product of 3 primes: k = pqr, where p < q < r are primes such that a^(k-1) == 1 (mod k) if a is prime to k.

Table of values

List of values

cp's OEIS Frontend

A087788 3-Carmichael numbers: Carmichael numbers equal to the product of 3 primes: k = p*q*r, where p < q < r are primes such that a^(k-1) == 1 (mod k) if a is prime to k.

Table of values

List of values

A087788 3-Carmichael numbers: Carmichael numbers equal to the product of 3 primes: k = pqr, where p < q < r are primes such that a^(k-1) == 1 (mod k) if a is prime to k.