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 A208278 #10 Jul 13 2013 12:04:23 %S A208278 1,2,4,8,16,12,24,28,46,52,14,28,36,72,34,68,46,72,84,108,26,52,54, %T A208278 108,106,32,44,68,76,92,84,128,46,92,84,48,56,92,124,148,56,112,124, %U A208278 168,196,112,144,208,216,252,34,68,56,112,94,148,76,132,144,228,96 %N A208278 Row sums of Pascal's triangle mod 10 (A008975). %H A208278 Reinhard Zumkeller, <a href="/A208278/b208278.txt">Table of n, a(n) for n = 0..10000</a> %F A208278 a(n) = sum (A008975(n,k): k = 0..n). %o A208278 (Haskell) %o A208278 a208278 = sum . a008975_row %K A208278 nonn %O A208278 0,2 %A A208278 _Reinhard Zumkeller_, Feb 25 2012