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 A208134 #11 Jul 13 2013 12:04:22 %S A208134 0,0,0,0,0,2,1,0,1,0,6,2,2,0,0,0,9,6,3,0,14,10,6,2,0,18,17,12,15,10, %T A208134 13,0,21,18,15,24,23,18,13,10,31,22,17,10,5,24,17,6,9,0,42,34,38,30, %U A208134 30,22,39,30,27,16,38,20,18,0,20,52,41,30,19,10,50,34 %N A208134 Number of zeros in n-th row of Pascal's triangle mod 10 (A008975). %H A208134 Reinhard Zumkeller, <a href="/A208134/b208134.txt">Table of n, a(n) for n = 0..10000</a> %F A208134 a(n) = sum (0 ^ A008975(n,k): k = 0..n). %o A208134 (Haskell) %o A208134 a208134 = length . filter (== 0) . a008975_row %K A208134 nonn %O A208134 0,6 %A A208134 _Reinhard Zumkeller_, Feb 25 2012