Squares in A048153.

Terms

a(0) =0a(1) =1a(2) =484a(3) =1156a(4) =2116a(5) =4900a(6) =16900a(7) =30625a(8) =41209a(9) =765625a(10) =12027024a(11) =45346756a(12) =94303521a(13) =1188939361a(14) =2144430864a(15) =3475809936a(16) =6168531600a(17) =26159180644a(18) =211618400400a(19) =483560298225a(20) =999898002601