3290040domain: NAppears in sequencesa(n) = n*binomial(n+4, 4).at n=36A174002a(n) = 6*binomial(5*n + 6,n)/(5*n + 6).at n=7A233668Number of achiral dissections of a polygon into n hexagons by nonintersecting diagonals rooted at a cell.at n=15A370061