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 A071278 #15 Jul 08 2024 02:28:38
%S A071278 6,8,10,12,12,14,15,16,18,18,20,21,22,24,24,27,28,30,32,33,35,36,40,
%T A071278 42,44,44,45,48,54,55,56,63,66,66,66,72,77,88,88,88,99,99,110,110,132,
%U A071278 132,132,132,154,154,165,165,176,176,176,198,198,198,198,202,220,220,222
%N A071278 Sorted list of numbers b(i)*b(j), 2 < i < j, where b = A002113 = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33 ... is a list of the decimal palindromes.
%C A071278 Old name was: Palindromes which are nontrivial multiples of 2 distinct palindromes.
%C A071278 Repetitions are allowed. 12 appears twice because it is both 2*6 and 3*4.
%e A071278 8 is in the sequence because 8=2*4.
%t A071278 Module[{nn=250,pals},pals=Select[Range[2,nn],PalindromeQ];Select[Sort[ Times@@#&/@ Subsets[pals,{2}]],#<=nn&]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, May 27 2018 *)
%Y A071278 Cf. A002113.
%K A071278 base,nonn
%O A071278 1,1
%A A071278 _Amarnath Murthy_, Jun 07 2002
%E A071278 Corrected and extended by _Sascha Kurz_, Jan 02 2003
%E A071278 Edited (with corrected definition) by _N. J. A. Sloane_, May 27 2018