Numbers with prime factorization pq^4r^4.

Terms

a(0) =6480a(1) =9072a(2) =14256a(3) =16848a(4) =22032a(5) =24624a(6) =29808a(7) =30000a(8) =37584a(9) =40176a(10) =47952a(11) =53136a(12) =55728a(13) =60912a(14) =68688a(15) =70000a(16) =76464a(17) =79056a(18) =86832a(19) =92016a(20) =94608a(21) =101250a(22) =102384a(23) =107568a(24) =110000a(25) =115248a(26) =115344a(27) =125712a(28) =130000a(29) =130896