Numbers that can be represented as p^r + q^s with 4 distinct odd primes p, q, r, s.

Terms

a(0) =18138a(1) =19004a(2) =21720a(3) =23666a(4) =28974a(5) =41196a(6) =46598a(7) =67460a(8) =79456a(9) =80322a(10) =83038a(11) =84984a(12) =85728a(13) =90292a(14) =96314a(15) =102514a(16) =107916a(17) =120630a(18) =128778a(19) =147046a(20) =157632a(21) =161394a(22) =163238a(23) =163248a(24) =165684a(25) =165964a(26) =167910a(27) =173218a(28) =181948a(29) =185440