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 A178108 #4 Dec 26 2023 11:45:52 %S A178108 1,0,1,1,0,1,0,2,0,1,2,0,5,0,1,0,7,0,8,0,1,7,0,31,0,13,0,1,0,38,0,70, %T A178108 0,18,0,1,38,0,248,0,160,0,25,0,1,0,286,0,728,0,285,0,32,0,1,286,0, %U A178108 2470,0,2153,0,509,0,41,0,1,0,2756,0,8929,0,4698,0,796,0,50,0,1,2756,0,29543,0 %N A178108 Inverse of coefficient array for orthogonal polynomials P(n,x)=x*P(n-1,x)-(2*floor((n+2)/2)-3)*P(n-2,x), P(0,x)=1,P(1,x)=x. %C A178108 Inverses is A178107. First column is aeration of A094664. %e A178108 Triangle begins %e A178108 1, %e A178108 0, 1, %e A178108 1, 0, 1, %e A178108 0, 2, 0, 1, %e A178108 2, 0, 5, 0, 1, %e A178108 0, 7, 0, 8, 0, 1, %e A178108 7, 0, 31, 0, 13, 0, 1, %e A178108 0, 38, 0, 70, 0, 18, 0, 1, %e A178108 38, 0, 248, 0, 160, 0, 25, 0, 1, %e A178108 0, 286, 0, 728, 0, 285, 0, 32, 0, 1, %e A178108 286, 0, 2470, 0, 2153, 0, 509, 0, 41, 0, 1 %e A178108 Production matrix is %e A178108 0, 1, %e A178108 1, 0, 1, %e A178108 0, 1, 0, 1, %e A178108 0, 0, 3, 0, 1, %e A178108 0, 0, 0, 3, 0, 1, %e A178108 0, 0, 0, 0, 5, 0, 1, %e A178108 0, 0, 0, 0, 0, 5, 0, 1, %e A178108 0, 0, 0, 0, 0, 0, 7, 0, 1, %e A178108 0, 0, 0, 0, 0, 0, 0, 7, 0, 1 %K A178108 nonn,tabl %O A178108 0,8 %A A178108 _Paul Barry_, May 20 2010