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%I #16 Feb 13 2021 01:13:58
%S 1,3,5,7,9,13,15,17,19,20,21,23,24,25,26,27,28,29,30,31,32,34,35,36,
%T 37,38,39,40,41,42,43,45,46,47,48,49,50,51,52,53,54,56,57,58,59,60,61,
%U 62,63,64,65,67,68,69,70,71,72,73,74,75,76,78,79,80,81,82,83,84,85,86,87
%N Numbers that are not of the form k + reverse(k) for any k.
%H Daniel Starodubtsev, <a href="/A067031/b067031.txt">Table of n, a(n) for n = 0..10000</a>
%e 3 belongs to the sequence since there is no k such that k + reverse(k) = 3.
%t Module[{nn=100,rd},rd=Union[Table[n+FromDigits[ Reverse[ IntegerDigits[ n]]],{n,nn}]];Complement[Range[nn],rd]] (* _Harvey P. Dale_, Dec 16 2013 *)
%o (ARIBAS): function a067031(a,b: integer); var k,n,i,rev: integer; test: boolean; st,nst: string; begin for n := a to b do k := 0; test := 1; while test and k <= n do st := itoa(k); nst := ""; for i := 0 to length(st) - 1 do nst := concat(st[i],nst); end; rev := atoi(nst); if n = k + rev then test := 0; else inc(k); end; end; if k > n then write(n,","); end; end; end; a067031(0,100);.
%Y Cf. A056964.
%Y Complement of A067030.
%Y Cf. A033865, A067030, A067032, A067033, A067034.
%K base,easy,nonn
%O 0,2
%A _Klaus Brockhaus_, Dec 29 2001
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