This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A045643 #23 Jul 07 2025 04:02:34
%S A045643 0,8,88,232,272,424,464,616,656,696,808,848,888,2112,2552,2992,4224,
%T A045643 4664,6336,6776,8008,8448,8888,21112,21312,21512,21712,21912,23032,
%U A045643 23232,23432,23632,23832,25152,25352,25552,25752,25952,27072,27272,27472
%N A045643 Palindromic and divisible by 8.
%H A045643 Paolo Xausa, <a href="/A045643/b045643.txt">Table of n, a(n) for n = 1..2000</a>
%t A045643 palQ[n_]:=Module[{idn=IntegerDigits[n]},idn==Reverse[idn]];Select[ 8Range[0,3500],palQ] (* _Harvey P. Dale_, Jun 06 2011 *)
%t A045643 Select[8*Range[0, 3500],PalindromeQ] (* _Harvey P. Dale_, Feb 17 2023 *)
%Y A045643 Intersection of A002113 and A008590.
%Y A045643 Cf. A029951, A045638, A045639, A043040, A043041, A045642, A045644, A083852.
%K A045643 nonn,base
%O A045643 1,2
%A A045643 _Jeff Burch_
%E A045643 Edited to include a(1) = 0 by _Paolo Xausa_, Jul 07 2025