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 A145100 #3 Mar 31 2012 10:28:53 %S A145100 1,2,17,19,25,38,52,56,75,76,82,83,90,92,97,98,100,102,104,105,108, %T A145100 113,116,135,139,141,142,147,150,153,163,165,177,178,180,184,195,197, %U A145100 198,201,204,209,210,212,225,226,232,267,269,275,278,279,291,293,294,298 %N A145100 Integers in which no more than half the digits (rounded up) are the same, for all bases up to ten. %e A145100 267 in bases [2, 10] is 100001011, 100220, 10023, 2032, 1123, 531, 413, 326, 267. There are five zeros out of nine digits in its binary representation and no more than half the digits in the other bases are identical. %Y A145100 Cf. A049354, A049355, A049356, A049357, A049358, A049359, A049360, A049361, A049362, A049363, A049364 %K A145100 base,easy,nonn %O A145100 1,2 %A A145100 _Reikku Kulon_, Oct 01 2008