A206642 Non-palindromes whose squares are in A066531.

660, 2520, 4030, 5040, 6600, 8160, 25200, 27720, 32670, 40300, 43560, 50400, 66000, 81600, 205020, 229320, 236320, 254520, 269620, 277200, 279720, 310030, 326700, 329670, 351430, 410040, 435600, 439560, 458640, 483840, 486160

Offset

1,1

Links

Table of n, a(n) for n=1..31.

Shyam Sunder Gupta, EPRNs

Example

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.

Crossrefs

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

Sequence in context: A252519 A014362 A143042 * A064261 A235770 A204538

Adjacent sequences: A206639 A206640 A206641 * A206643 A206644 A206645

Keyword

nonn,base

Author

Hans Havermann, Feb 11 2012

Extensions

Edited by N. J. A. Sloane, Aug 01 2019

Status

approved