Numbers with prime factorization pqrstu^4.

Terms

a(0) =240240a(1) =314160a(2) =351120a(3) =371280a(4) =414960a(5) =425040a(6) =502320a(7) =535920a(8) =542640a(9) =572880a(10) =583440a(11) =633360a(12) =652080a(13) =656880a(14) =677040a(15) =683760a(16) =734160a(17) =757680a(18) =789360a(19) =794640a(20) =808080a(21) =810810a(22) =816816a(23) =828240a(24) =852720a(25) =868560a(26) =885360a(27) =895440a(28) =912912a(29) =925680