a(n) = A065621(n^2).

Terms

a(0) =1a(1) =4a(2) =25a(3) =16a(4) =41a(5) =100a(6) =81a(7) =64a(8) =241a(9) =164a(10) =137a(11) =400a(12) =505a(13) =324a(14) =289a(15) =256a(16) =865a(17) =964a(18) =953a(19) =656a(20) =713a(21) =548a(22) =1585a(23) =1600a(24) =1681a(25) =2020a(26) =1897a(27) =1296a(28) =1497a(29) =1156