19144125domain: NAppears in sequencesNumbers with exactly 6 distinct odd prime divisors {3,5,7,11,13,17}.at n=21A147579The z^2 coefficients of the polynomials in the GF1 denominators of A156921.at n=24A157706Odd numbers k such that k is a multiple of A005941(k).at n=15A364551