9178864590domain: NAppears in sequencesa(n) = the smallest number k>1 such that Sum_{p|k} 0.p = n where p runs through the prime divisors of k.at n=4A276513a(n) = the smallest number k>1 such that floor(Sum_{p|k} 0.p) = n where p runs through the prime divisors of k.at n=5A276654