Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #13 Apr 07 2021 20:36:35
%S 12,13,14,15,16,17,18,19,23,24,25,26,27,28,29,34,35,36,37,38,39,45,46,
%T 47,48,49,56,57,58,59,67,68,69,78,79,89,102,103,104,105,106,107,108,
%U 109,112,113,114,115,116,117,118,119,122,123,124,125,126,127,128,129
%N Numbers n such that Reversal(n) > n.
%H T. D. Noe, <a href="/A071589/b071589.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[200], # < FromDigits[Reverse[IntegerDigits[#]]] &] (* _T. D. Noe_, Mar 14 2012 *)
%o (PARI) for(i=2,300,n=(i); s=ceil(log(n)/log(10)); if((sum(i=0,s,10^(s-i-1)*(floor(n/10^i*1.)-10*floor(n/10^(i+1)*1.))))>i,print1((i),",")))
%Y Cf. A004086 (digit reversal), A071590 (reversal < n), A002113 (reversal = n).
%Y Cf. A161601 (binary reversal > n).
%K base,easy,nonn
%O 1,1
%A _Benoit Cloitre_, Jun 01 2002