59003domain: NAppears in sequencesNumbers having four 8's in base 9.at n=27A043488Number of positive integers <= 2^n of form 8 x^2 + 9 y^2.at n=20A054191Start with 443; if even, divide by 2; if odd, add next three primes: Orbit of 443 under iterations of A174221, the "PrimeLatz" map.at n=29A293978