3730650domain: NAppears in sequencesNumber of diagonal dissections of a convex n-gon into n-5 regions.at n=8A002056Triangle read by rows: T(n, k) = v(n, k)*((1/v(n, k)) mod prime(k)), where v(n, k) = (Product_{j=1..n} prime(j))/prime(k), n >= 1, 1 <= k <= n.at n=33A240673