Squares whose sum of prime factors (with multiplicity) is also a perfect square.

Terms

a(0) =1a(1) =4a(2) =225a(3) =256a(4) =324a(5) =4225a(6) =5929a(7) =6084a(8) =7569a(9) =12100a(10) =17424a(11) =19881a(12) =38416a(13) =61009a(14) =78400a(15) =90601a(16) =99225a(17) =103684a(18) =112225a(19) =112896a(20) =140625a(21) =142884a(22) =160000a(23) =161604a(24) =174724a(25) =184900a(26) =195364a(27) =202500a(28) =211600a(29) =230400