%I
%S 1,4,9,100,121,144,169,400,441,484,676,900,961,1521,1681,1764,4624,
%T 4761,5625,9409,10000,10201,10404,10609,11881,12321,14161,14641,16641,
%U 17161,19321,19881,40000,40401,40804,41209,43264,44944,47524,49284
%N Squares with property that swapping first and last digits also gives a square.
%e 1764 and 4761 both are squares hence both are members.
%t Do[t = IntegerDigits[n^2]; u = t; u[[1]] = t[[ 1]]; u[[ 1]] = t[[1]]; t = FromDigits[u]; If[ IntegerQ[ Sqrt[t]], Print[n^2]], {n, 1, 300}]
%Y Cf. A069706, A069708.
%K nonn,base
%O 1,2
%A _Amarnath Murthy_, Apr 08 2002
%E Edited and extended by _Robert G. Wilson v_
%E Edited by _N. J. A. Sloane_, Jan 20 2009
