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%I #12 Jan 26 2022 18:18:55
%S 0,8,44,494,858,49494,445544,819918,4462644,8853588,8913198,81099018,
%T 441525144,882060288,8100990018,44105250144,49781418794,85831713858,
%U 447597795744,810009900018,889249942988,4410052500144,4450696960544,4927434347294,80512566521508,81000099000018
%N Palindromes of form k*(k+7).
%H Michael S. Branicky, <a href="/A028565/b028565.txt">Table of n, a(n) for n = 1..49</a>
%H Patrick De Geest, <a href="http://www.worldofnumbers.com/consemor.htm">Palindromic Quasipronics of the form n(n+x)</a>
%F a(n) = A028564(n) * (A028564(n) + 7). - _Michael S. Branicky_, Jan 26 2022
%o (Python)
%o from itertools import count, islice
%o def ispal(n): s = str(n); return s == s[::-1]
%o def agen():
%o for k in count(0):
%o if ispal(k*(k+7)):
%o yield k*(k+7)
%o print(list(islice(agen(), 28))) # _Michael S. Branicky_, Jan 26 2022
%Y Cf. A028563, A028564.
%K nonn,base
%O 1,2
%A _Patrick De Geest_
%E a(23) and beyond from _Michael S. Branicky_, Jan 26 2022
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