cp's OEIS Frontend

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.

A062908 Non-palindromic number and its reversal are both even.

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%I A062908 #18 Jul 03 2025 18:31:02
%S A062908 20,24,26,28,40,42,46,48,60,62,64,68,80,82,84,86,200,204,206,208,210,
%T A062908 214,216,218,220,224,226,228,230,234,236,238,240,244,246,248,250,254,
%U A062908 256,258,260,264,266,268,270,274,276,278,280,284,286,288,290,294,296
%N A062908 Non-palindromic number and its reversal are both even.
%e A062908 24 and 42 are both multiples of 2.
%t A062908 Select[Range[2,296,2],EvenQ[Last[x=Reverse[y=IntegerDigits[#]]]] && x!=y &] (* _Jayanta Basu_, May 17 2013 *)
%o A062908 (ARIBAS) n := 2; stop := 410; m := 0; while m < stop do rev := int_reverse(m); if m <> rev and rev mod n = 0 then write(m," "); end; inc(m,n); end;
%o A062908 (PARI) isok(m) =  {if (!(m%2), my(r=fromdigits(Vecrev(digits(m)))); if ((r!=m) && !(r%2), print1(m, ", ")););} \\ _Michel Marcus_, Oct 10 2020
%Y A062908 Cf. A029742 (non-palindromic), A005843 (even numbers).
%K A062908 nonn,base,easy
%O A062908 1,1
%A A062908 _Amarnath Murthy_, Jul 01 2001
%E A062908 More terms from _Dean Hickerson_, Jul 06 2001