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 A179750 #2 Mar 30 2012 18:53:10 %S A179750 1,-1,1,1,-2,1,-2,4,-3,1,4,-8,7,-4,1,-7,14,-14,11,-5,1,11,-22,25,-25, %T A179750 16,-6,1,-18,36,-44,51,-41,22,-7,1,35,-70,83,-99,92,-63,29,-8,1,-76, %U A179750 152,-166,188,-190,155,-92,37,-9,1,166,-332,337,-354,373,-345,247,-129,46 %N A179750 Triangle T(n,k) read by rows. Matrix inverse of A179749. %C A179750 First column of this triangle is A127926. %e A179750 Table begins: %e A179750 1, %e A179750 -1,1, %e A179750 1,-2,1, %e A179750 -2,4,-3,1, %e A179750 4,-8,7,-4,1, %e A179750 -7,14,-14,11,-5,1, %e A179750 11,-22,25,-25,16,-6,1, %e A179750 -18,36,-44,51,-41,22,-7,1, %e A179750 35,-70,83,-99,92,-63,29,-8,1, %e A179750 -76,152,-166,188,-190,155,-92,37,-9,1, %e A179750 166,-332,337,-354,373,-345,247,-129,46,-10,1, %e A179750 -358,716,-693,678,-717,719,-592,376,-175,56,-11,1, %Y A179750 Cf. A179748, A179749, A127926. %K A179750 sign,tabl %O A179750 1,5 %A A179750 _Mats Granvik_, Jul 26 2010