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 A136694 #2 Mar 30 2012 18:55:32 %S A136694 1,1,2,6,3,1,6,6,6,5,1,4,6,1,2,2,4,5,6,2,5,1,1,2,6,3,1,6,3,3,6,4,2,3, %T A136694 4,6,6,5,1,4,6,1,6,6,5,1,4,6,1,1,1,2,6,3,1,6,6,6,5,1,4,6,1,2,2,4,5,6, %U A136694 2,5,1,1,2,6,3,1,6,3,3,6,4,2,3,4,6,6,5,1,4,6,1,6,6,5,1,4,6,1,2,2 %N A136694 Final nonzero digit of n! in base 7. %e A136694 6! = 720 decimal = 2046 septimal, so a(6) = 6. %Y A136694 Cf. A000142, A136690, A136691, A136692, A136693, A136695, A136696, A008904, A136697, A136698, A136699, A136700, A136701, A136702. %K A136694 base,easy,nonn %O A136694 0,3 %A A136694 _Carl R. White_, Jan 16 2008