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 A154130 #9 Mar 31 2012 13:21:05
%S A154130 1,4,13,17,128,485,692,1738,12863,77042,109705,289047,720429,4475944,
%T A154130 75629223,182575231
%N A154130 Exponents m with decreasing fractional part of (4/3)^m.
%C A154130 The next term is greater than 3*10^8.
%F A154130 Recursion: a(1):=1, a(k):=min{ m>1 | fract((4/3)^m) < fract((4/3)^a(k-1))}, where fract(x) = x-floor(x).
%e A154130 a(3)=13, since fract((4/3)^13)=0.0923.., but fract((4/3)^k)>=0.16... for 1<=k<=12; thus fract((4/3)^13)<fract((4/3)^k) for 1<=k<13.
%Y A154130 Cf. A081464, A153669, A153701, A153708, A154138, A154146.
%Y A154130 Cf. A002379, A064628.
%K A154130 nonn
%O A154130 1,2
%A A154130 _Hieronymus Fischer_, Jan 11 2009
%E A154130 Extended by _Charles R Greathouse IV_, Nov 03 2009
%E A154130 a(15)-a(16) from _Robert Gerbicz_, Nov 21 2010