168003672409
domain: N
Appears in sequences
- Carmichael numbers of the form (6*k+1)*(12*k+1)*(18*k+1), where 6*k+1, 12*k+1 and 18*k+1 are all primes.at n=17A033502
- Carmichael numbers (A002997) that are super-Poulet numbers (A050217).at n=10A291637
- Numbers of the form: (6*m + 1) * (12*m + 1) * Product_{i=1..k-2} (9 * 2^i * m + 1), where k >= 3, with the condition that each of the factors is prime and that m is divisible by 2^(k-4).at n=18A317126
- Super pseudoprimes to both bases 2 and 3 (A333130) with more than two prime factors (counted with multiplicity).at n=3A333131
- Carmichael numbers (A002997) that are overpseudoprimes to base 2 (A141232).at n=1A352987