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 A097644 #10 Mar 09 2023 17:26:38
%S A097644 51,130,370,8201,73270,82080,26113610,4854248220,37682961610
%N A097644 Numbers n such that pi(n) = reversal(n).
%C A097644 This sequence has only two odd terms, i.e., 51 and 8201 and 10 divides all other terms. Next term is greater than 10^8.
%e A097644 26113610 is in the sequence because
%e A097644 pi(26113610) = 1631162 = reversal(26113610).
%t A097644 Do[If[PrimePi[m]==FromDigits[Reverse[IntegerDigits[m]]], Print[m]], {m, 100000000}]
%Y A097644 Cf. A037171, A069215.
%K A097644 base,nonn
%O A097644 1,1
%A A097644 _Farideh Firoozbakht_, Aug 25 2004
%E A097644 Two more terms from _Giovanni Resta_, Feb 06 2006