Sum of the squares of the first n squarefree numbers.

Terms

a(0) =0a(1) =1a(2) =5a(3) =14a(4) =39a(5) =75a(6) =124a(7) =224a(8) =345a(9) =514a(10) =710a(11) =935a(12) =1224a(13) =1585a(14) =2026a(15) =2510a(16) =3039a(17) =3715a(18) =4556a(19) =5456a(20) =6417a(21) =7506a(22) =8662a(23) =9887a(24) =11256a(25) =12700a(26) =14221a(27) =15902a(28) =17666a(29) =19515