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 A115669 #4 Mar 23 2018 12:32:37
%S A115669 2,3,11,13,20,30,31,59,61,101,110,112,113,128,130,131,178,200,300,301,
%T A115669 307,310,311,388,590,599,610,839,854,875,949,989,1003,1010,1021,1031,
%U A115669 1100,1102,1103,1105,1112,1120,1124,1130,1175,1201,1216,1280,1300
%N A115669 Numbers the reversal of whose square is a brilliant number (A078972).
%H A115669 Harvey P. Dale, <a href="/A115669/b115669.txt">Table of n, a(n) for n = 1..1000</a>
%e A115669 3481=59^2 is a square and 1843=19*97 is brilliant.
%t A115669 sbnQ[n_]:=Module[{fi=FactorInteger[IntegerReverse[n^2]]},(Length[fi]==1 && fi[[1,2]]==2)||(Length[fi]==2&&fi[[All,2]]=={1,1})&&Length[Union[ IntegerLength[ fi[[All,1]]]]]==1]; Select[Range[1300],sbnQ] (* _Harvey P. Dale_, Mar 23 2018 *)
%Y A115669 Cf. A078972, A115667, A115668.
%K A115669 nonn,base
%O A115669 1,1
%A A115669 _Giovanni Resta_, Jan 31 2006