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 A136767 #6 Aug 02 2013 19:03:47 %S A136767 6,10,14,18,22,29,30,34,38,45,46,53,57,61,62,66,70,77,78,85,89,93,94, %T A136767 101,105,109,113,117,124,125,126,130,134,141,142,149,153,157,158,165, %U A136767 169,173,177,181,188,189,190,197,201,205,209,213,220,221,225,229,236 %N A136767 n! never ends in this many 0's in base 4. %Y A136767 Cf. A000142, A136755, A136691. %Y A136767 Cf. A000966, A055938, A096346, A136768, A136769, A136770, A136771, A136772, A136773, A136774. %K A136767 base,nonn %O A136767 1,1 %A A136767 _Carl R. White_, Jan 21 2008