389112domain: NAppears in sequences8*P_7(n), 8 times the Legendre Polynomial of order 7 at n.at n=3A160743a(n) is the permanent of the matrix [((i + j)/(2*n + 1))]_{i,j=0..n}, where (k/m) denotes the Jacobi symbol.at n=16A322898Expansion of g.f. A(x) satisfying A(x) = 1 + x*(3*A(x)^2 - A(-x)^2)/2.at n=10A368634