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 A114173 #3 Mar 30 2012 18:36:52 %S A114173 1,2,5,13,34,90,240,643,1729,4663,12607,34156,92702,251975,685759, %T A114173 1868310,5094753,13904028,37971570,103762963,283703065,776069296, %U A114173 2123892683,5814922585,15926507984,43636524179,119597410199 %N A114173 Row sums of triangle A114172, where the g.f. of column n equals the g.f. of row n divided by (1-x)^(n+1). %Y A114173 Cf. A114172, A114174 (central terms), A114175 (row sums-square). %K A114173 nonn %O A114173 0,2 %A A114173 _Paul D. Hanna_, Nov 15 2005