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 A247168 #31 Nov 30 2014 08:52:09 %S A247168 6,22,66,209,655,2059,6468,20321,63839,200556,630065,1979408,6218494, %T A247168 19535974,61374075,192812343,605737840,1902981546,5978392847, %U A247168 18781675046,59004372349,185367702702,582349813020,1829505894404,5747562277559,18056499427227 %N A247168 Number of times n occurs in the sequence floor(log_Pi(i)) with i=1,2,3,... . %F A247168 a(n) = floor(Pi^(n+1)) - floor(Pi^(n)) = A001672(n+1) - A001672(n), n>=1. %Y A247168 Cf. A000796, A001672. %K A247168 nonn %O A247168 1,1 %A A247168 _Talha Ali_, Nov 29 2014