Numbers with prime factorization p^2*q^3*r^4 where p, q, and r are distinct primes.

Terms

a(0) =10800a(1) =16200a(2) =18000a(3) =21168a(4) =31752a(5) =40500a(6) =45000a(7) =49392a(8) =52272a(9) =67500a(10) =73008a(11) =78408a(12) =98000a(13) =109512a(14) =111132a(15) =124848a(16) =137200a(17) =155952a(18) =172872a(19) =187272a(20) =191664a(21) =228528a(22) =233928a(23) =242000a(24) =245000a(25) =259308a(26) =316368a(27) =338000a(28) =342792a(29) =363312