43791domain: NAppears in sequencesNumbers k such that 3^k + 2 is prime.at n=35A051783Numbers k such that sigma(k-phi(k)) = phi(k).at n=15A070170Numbers whose anti-divisors sum to a perfect cube.at n=34A109351Number of partitions p of n such that floor(n/2) is not a part of p.at n=40A238546