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 A284810 #9 Apr 11 2017 10:45:54 %S A284810 4,16,24,32,40,48,56,64,72,124,204,284,364,444,524,604,684,808,880, %T A284810 952,1024,1096,1168,1240,1312,1384,1536,1608,1680,1752,1824,1896,1968, %U A284810 2040,2112,2264,2336,2408,2480,2552,2624,2696,2768,2840,2992,3064,3136,3208,3280 %N A284810 Fixed points of the transform A284809. %e A284810 952 is a term of the sequence because 952 in base 9 is 1267, its complement in base 9 is 7621 and the digit reverse is again 1267 that is 952 in base 10. %p A284810 P:=proc(q,h) local a,b,k,n; for n from 1 to q do a:=convert(n,base,h); b:=0; %p A284810 for k from 1 to nops(a) do a[k]:=h-1-a[k]; b:=h*b+a[k]; od; if b=n then print(n); fi; od; end: P(10^2,9); %Y A284810 Cf. A035928, A284809. %K A284810 nonn,base,easy %O A284810 1,1 %A A284810 _Paolo P. Lava_, Apr 04 2017