Numbers with prime factorization pqrs^2t^2u^2.

Terms

a(0) =900900a(1) =1178100a(2) =1261260a(3) =1316700a(4) =1392300a(5) =1556100a(6) =1593900a(7) =1649340a(8) =1843380a(9) =1883700a(10) =1949220a(11) =1981980a(12) =2009700a(13) =2034900a(14) =2102100a(15) =2148300a(16) =2178540a(17) =2187900a(18) =2231460a(19) =2342340a(20) =2375100a(21) =2445300a(22) =2463300a(23) =2538900a(24) =2564100a(25) =2591820