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A161902 Non-palindromic squares whose digit reversal gives a square (possibly with fewer digits). 2
100, 144, 169, 400, 441, 900, 961, 1089, 9801, 10000, 10404, 10609, 12100, 12544, 12769, 14400, 14884, 16900, 40000, 40401, 44100, 44521, 48400, 48841, 67600, 90000, 90601, 96100, 96721, 108900, 980100, 1000000, 1004004, 1006009, 1020100, 1022121, 1024144, 1026169, 1040400, 1042441 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1130

MATHEMATICA

rsQ[n_]:=Module[{idn=IntegerDigits[n], ridn}, ridn=Reverse[idn]; ridn!=idn&&IntegerQ[Sqrt[FromDigits[ridn]]]]; Select[Range[2000]^2, rsQ]  (* Harvey P. Dale, Feb 02 2011 *)

CROSSREFS

Sequence in context: A319440 A096598 A070760 * A153673 A258482 A004262

Adjacent sequences:  A161899 A161900 A161901 * A161903 A161904 A161905

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Jan 30 2011

EXTENSIONS

More terms from Harvey P. Dale, Feb 02 2011

STATUS

approved

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Last modified December 5 15:11 EST 2019. Contains 329753 sequences. (Running on oeis4.)