Achilles numbers sandwiched between two semiprimes.

Terms

a(0) =288a(1) =392a(2) =1944a(3) =4500a(4) =4608a(5) =7200a(6) =9248a(7) =13068a(8) =14112a(9) =14792a(10) =16200a(11) =18000a(12) =19652a(13) =21632a(14) =26136a(15) =26912a(16) =28800a(17) =31104a(18) =32000a(19) =34992a(20) =38088a(21) =38988a(22) =41472a(23) =42592a(24) =45000a(25) =48668a(26) =49000a(27) =52272a(28) =55112a(29) =56448