A206642 - OEIS

%I #9 Aug 01 2019 01:27:20

%S 660,2520,4030,5040,6600,8160,25200,27720,32670,40300,43560,50400,

%T 66000,81600,205020,229320,236320,254520,269620,277200,279720,310030,

%U 326700,329670,351430,410040,435600,439560,458640,483840,486160

%N Non-palindromes whose squares are in A066531.

%H Shyam Sunder Gupta, <a href="http://www.shyamsundergupta.com/eporns.htm">EPRNs</a>

%e 660 is in the sequence because 660^2 = 528*825 = 6600*0066; 2520 is in the sequence because 2520^2 = 14400*00441 = 25200*00252 = 44100*00144; etc.

%Y Cf. A066531, A083408 (square EPRNs), A117281 (palindromic version).

%K nonn,base

%O 1,1

%A _Hans Havermann_, Feb 11 2012

%E Edited by _N. J. A. Sloane_, Aug 01 2019