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 A174052 #3 Jul 12 2012 00:39:51 %S A174052 1,40,81,296,449,984,1301,2320,2913,4558,5441 %N A174052 The sum of the numbers in n-th row of alternant triangle A173865. %Y A174052 Cf. A007310, A140475, A173825, A173865. %K A174052 nonn %O A174052 1,2 %A A174052 _Juri-Stepan Gerasimov_, Mar 06 2010