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 A350351 #7 Jan 04 2022 16:27:09 %S A350351 1,1,1,1,1,1,1,2,-3,-4,1,1,1,-4,-4,1,1,1,-3,3,-1,1,2,-2,-3,-3,-5,13,1, %T A350351 2,-2,-5,8,14,-27,-40,1,1,3,-3,2,4,13,-22,-68,1,2,-3,-3,-1,3,-3,10,48, %U A350351 96,1,1,1,-4,-4,3,3,2,-48,96,80 %N A350351 Array read by antidiagonals: T(n,k) is the determinant of the Hankel matrix of the 2*n-1 consecutive terms of A350330 starting at the k-th term, n >= 0, k >= 1. %C A350351 By definition of A350330, no term is zero. %H A350351 Wikipedia, <a href="https://en.wikipedia.org/wiki/Hankel_matrix">Hankel matrix</a> %e A350351 Array begins: %e A350351 n\k| 1 2 3 4 5 6 7 8 %e A350351 ---+-------------------------------- %e A350351 0 | 1 1 1 1 1 1 1 1 %e A350351 1 | 1 1 2 1 1 2 2 1 %e A350351 2 | 1 -3 1 1 -2 -2 3 -3 %e A350351 3 | -4 -4 -3 -3 -5 -3 -3 -4 %e A350351 4 | -4 3 -3 8 2 -1 -4 -4 %e A350351 5 | -1 -5 14 4 3 3 -1 7 %e A350351 6 | 13 -27 13 -3 3 -5 13 11 %e A350351 7 | -40 -22 10 2 -14 -32 -36 -46 %e A350351 8 | -68 48 -48 52 -40 16 8 27 %Y A350351 Cf. A350330. %K A350351 sign,tabl %O A350351 0,8 %A A350351 _Pontus von Brömssen_, Dec 26 2021