A061459 Squares which produce squares when the leading digit is moved to the end.

1, 4, 9, 100, 144, 196, 400, 625, 900, 10000, 11664, 14884, 40000, 46656, 60025, 90000, 96100, 1000000, 1028196, 1493284, 4000000, 4112784, 6385729, 9000000, 9253764, 100000000, 100400400, 139287204, 149377284, 187799616, 400000000

Offset: 1

Author

Amarnath Murthy, May 04 2001

Keywords

• nonn
• base

Examples

			196 becomes 961 which is also a square.
		

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..50

Crossrefs

Cf. A061460.

Programs

Mathematica

Select[Range[20000]^2,IntegerQ[Sqrt[FromDigits[RotateLeft[ IntegerDigits[ #]]]]]&] (* Harvey P. Dale, Jan 23 2014 *)

Extensions

More terms from Erich Friedman, May 08 2001