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 A366208 #12 Oct 06 2023 11:01:31 %S A366208 2,13,22,31,40,122,123,124,125,126,127,128,129,132,142,152,162,172, %T A366208 182,192,202,203,204,205,206,207,208,209,212,213,214,215,216,217,218, %U A366208 219,220,221,222,223,224,225,226,227,228,229,230,231,232,240,241,242,250,251 %N A366208 Numbers whose median of the digits is equal to 2. %e A366208 13 is a term since the median of the digits 1 and 3 is (1+3)/2 = 2; %e A366208 122 is a term since the median of the digits 1, 2, and 2 is 2. %t A366208 Select[Range[0,251], Median[IntegerDigits[#]]==2&] %Y A366208 Cf. A292730 (median = 0), A292739 (median = 9), A366207 (median = 1), A366209 (median = 3), A366210 (median = 4), A366211 (median = 5), A366212 (median = 6), A366213 (median = 7), A366214 (median = 8). %K A366208 nonn,base,easy %O A366208 1,1 %A A366208 _Stefano Spezia_, Oct 04 2023