(Terms in A014738)/4.

Terms

a(0) =9a(1) =25a(2) =196a(3) =324a(4) =1089a(5) =1521a(6) =3600a(7) =4624a(8) =9025a(9) =11025a(10) =19044a(11) =22500a(12) =35721a(13) =41209a(14) =61504a(15) =69696a(16) =99225a(17) =110889a(18) =152100a(19) =168100a(20) =223729a(21) =245025a(22) =318096a(23) =345744a(24) =439569a(25) =474721a(26) =592900a(27) =636804a(28) =783225a(29) =837225