84127131361domain: NAppears in sequencesCarmichael numbers that can be written as a product of two Carmichael numbers.at n=8A207041Carmichael numbers with a record number of aliquot divisors that are also Carmichael numbers.at n=4A290497Carmichael numbers divisible by the sum of their prime factors, sopfr (A001414).at n=3A309003