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%I #9 Sep 06 2017 20:54:03
%S 0,22,44,66,88,110,132,154,176,198,1111,2222,3333,4444,5555,6666,7777,
%T 8888,9999,11110,2222,3333,4444,5555,6666,7777,8888,9999,11110,12221,
%U 3333,4444,5555,6666,7777,8888,9999,11110,12221,13332,4444,5555,6666
%N {n concatenate R(n)} + {R(n) concatenate n}, where R(n) = digit reversal of n.
%H G. C. Greubel, <a href="/A110724/b110724.txt">Table of n, a(n) for n = 0..1000</a>
%F When n has one digit, a(n)=22*n. When n has two digits, a(n)= 1111*x + 1111*y. (Here x,y are the digits of n.) - Keith Schneider, Jun 16 2007
%e a(12) = 1221 + 2112 = 3333.
%e a(68) = 6886 + 8668 = 15554.
%t Table[FromDigits[Join[IntegerDigits[n], Reverse[IntegerDigits[n]]]] + FromDigits[Join[Reverse[IntegerDigits[n]], IntegerDigits[n]]], {n, 0, 50}] (* _Stefan Steinerberger_, Jun 17 2007 *)
%Y Cf. A110722, A110723, A110725.
%K base,easy,nonn,less
%O 0,2
%A _Amarnath Murthy_, Aug 09 2005
%E Corrected and extended by _Stefan Steinerberger_, Jun 17 2007
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