Pseudoprimes to base 10 that are not squarefree.

Terms

a(0) =9a(1) =99a(2) =657a(3) =909a(4) =1233a(5) =11169a(6) =13833a(7) =19503a(8) =20961a(9) =23661a(10) =51291a(11) =69921a(12) =90009a(13) =99297a(14) =109737a(15) =139329a(16) =203841a(17) =237169a(18) =256059a(19) =321201a(20) =339021a(21) =346473a(22) =460251a(23) =475641a(24) =686169a(25) =760761a(26) =927081a(27) =1080801a(28) =1621089a(29) =1679931