Numbers of the form (square + 1) that are not squarefree.

Terms

a(0) =50a(1) =325a(2) =1025a(3) =1445a(4) =1682a(5) =1850a(6) =3250a(7) =4625a(8) =4901a(9) =6725a(10) =8650a(11) =9802a(12) =11450a(13) =13690a(14) =13925a(15) =17425a(16) =20450a(17) =24650a(18) =28225a(19) =33125a(20) =37250a(21) =42850a(22) =47525a(23) =53825a(24) =57122a(25) =59050a(26) =63002a(27) =66050a(28) =71825a(29) =79525