503884800domain: NAppears in sequences(n-1)-st elementary symmetric function of the first n terms of the periodic sequence (2,3,2,3,2,3,...).at n=19A203232(n-1)-st elementary symmetric function of the first n terms of the periodic sequence (3,2,3,2,3,2,...).at n=19A203233a(n) = 5*n*6^(n-1).at n=9A212700