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 A132838 #4 Mar 14 2015 12:05:10 %S A132838 1,1,2,7,22,78,273,984,3573,13138,48670,181625,681630,2570979,9738171, %T A132838 37021873,141199583,540058408,2070814185,7958280782,30646175351, %U A132838 118230058466,456879024997,1768206394844,6852795439360,26592367534410 %N A132838 Largest integer terms forming a self-convolution 4th root of a sequence (A132837) such that: A132837(n) <= 4*A132837(n-1) for n>0 with A132837(0)=1. %Y A132838 Cf. A132837 (fourth power). %K A132838 nonn %O A132838 0,3 %A A132838 _Paul D. Hanna_, Sep 10 2007