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 A068634 #16 Dec 30 2017 11:17:15 %S A068634 1,2,3,4,5,6,7,8,9,10,11,84,403,574,255,976,1207,162,1729,20,84,22, %T A068634 736,168,1300,806,216,1148,2668,30,403,736,33,1462,1855,252,2701,3154, %U A068634 1209,40,574,168,1462,44,270,1472,3478,336,4606,50,255,1300,1855,270,55 %N A068634 a(n) = lcm(n, R(n)), where R(n) (A004086) = digit reversal of n. %H A068634 Alois P. Heinz, <a href="/A068634/b068634.txt">Table of n, a(n) for n = 1..10000</a> %e A068634 a(12) = lcm(12,21) = 84. %p A068634 r:= proc(n) local q; %p A068634 `if`(n<10, n, irem(n, 10, 'q') *10^(length(n)-1) +r(q)) %p A068634 end: %p A068634 a:= n-> ilcm(n, r(n)): %p A068634 seq(a(n), n=1..100); # _Alois P. Heinz_, Aug 16 2012 %t A068634 Array[LCM[#,FromDigits[Reverse[IntegerDigits[#]]]]&,50] (* _Harvey P. Dale_, Dec 13 2011 *) %K A068634 base,easy,nonn,look %O A068634 1,2 %A A068634 _Amarnath Murthy_, Feb 27 2002 %E A068634 More terms from _Alois P. Heinz_, Aug 16 2012