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 A126167 #13 Mar 31 2012 10:24:14 %S A126167 0,0,0,0,1,2,3,5,8,8,12 %N A126167 Number of primitive exponential amicable pairs (i,j) with i<j and i<=10^n. %C A126167 There are infinitely many exponential amicable pairs, for multiplying an exponential amicable pair by a squarefree integer coprime to each of its members will generate another exponential amicable pair. Accordingly, we refer to pairs like (90972,100548) as primitive exponential amicable pairs and to pairs like (454860,502740) that can be obtained from them as nonprimitive. This sequence counts the primitive pairs only. %D A126167 Hagis, Peter Jr.; Some Results Concerning Exponential Divisors, International Journal of Mathematics and Mathematical Sciences, Vol. 11, No. 2, (1988), pp. 343-350. %H A126167 Pedersen J. M., <a href="http://amicable.homepage.dk/knwne2.htm">Known exponential amicable pairs</a>. %e A126167 a(7)=3 because there are 3 primitive exponential pairs (m,n) with m<n and m<=10^7 %Y A126167 Cf. A051377, A054979, A049419, A054980, A126164, A126165, A126166. %K A126167 hard,nonn %O A126167 1,6 %A A126167 _Ant King_, Dec 21 2006 %E A126167 Link corrected and reference added by _Andrew Lelechenko_, Dec 04 2011