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A028567 Numbers n such that n(n+8) is a palindrome. 0

%I

%S 0,1,3,66,88,91,173,216,225,284,294,696,707,924,2235,2828,6996,9394,

%T 28314,30031,57489,69996,93844,188583,228175,241097,283778,298144,

%U 597883,699996,896478,1934063,2281817,6999996,7243225

%N Numbers n such that n(n+8) is a palindrome.

%H P. De Geest, <a href="http://www.worldofnumbers.com/consemor.htm">Palindromic Quasipronics of the form n(n+x)</a>

%H Erich Friedman, <a href="http://www2.stetson.edu/~efriedma/numbers.html">What's Special About This Number?</a> (See entries 696, 2235, 2828, 6996, 9394.)

%t Select[Range[0,8*10^6],PalindromeQ[#(#+8)]&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, May 28 2017 *)

%K nonn,base

%O 1,3

%A _Patrick De Geest_

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Last modified January 22 05:11 EST 2019. Contains 319353 sequences. (Running on oeis4.)