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 A157379 #7 Aug 26 2017 20:33:52 %S A157379 1,2,1,3,-3,1,4,6,0,1,5,-10,-10,-5,1,6,15,-20,15,-6,1,7,-21,0,0,-21, %T A157379 -7,1,8,28,56,0,0,0,0,1,9,-36,84,126,126,0,0,0,1,10,45,0,-210,252, %U A157379 -210,0,0,-10,1,11,-55,-165,330,0,0,330,165,-55,-11,1,12,66,-220,-495,0,0,792 %N A157379 Triangle read by rows: k X k determinants at the n-th row of A126988 without the first column of ones. %e A157379 Table begins: %e A157379 1; %e A157379 2, 1; %e A157379 3, -3, 1; %e A157379 4, 6, 0, 1; %e A157379 5, -10, -10, -5, 1; %e A157379 6, 15, -20, 15, -6, 1; %e A157379 7, -21, 0, 0, -21, -7, 1; %e A157379 8, 28, 56, 0, 0, 0, 0, 1; %e A157379 9, -36, 84, 126, 126, 0, 0, 0, 1; %e A157379 10, 45, 0, -210, 252, -210, 0, 0, -10, 1; %Y A157379 Cf. A157283. %K A157379 sign,tabl %O A157379 1,2 %A A157379 _Mats Granvik_ & _Gary W. Adamson_, Feb 28 2009