-25194domain: ZAppears in sequencesa(n) = -4*binomial(2*n-5, n-4)/n for n > 0 and a(0) = 1.at n=12A115143Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.at n=58A155454Coefficient array for powers of x^2 of the square of Chebyshev's C(2*n+1,x)/x =: tau(n,x) polynomials.at n=43A220669