14495120640domain: NAppears in sequencesNumber of simplices in barycentric subdivision of n-simplex.at n=8A005462a(n) = 9^n - 8*8^n + 28*7^n - 56*6^n + 70*5^n - 56*4^n + 28*3^n - 8*2^n + 1.at n=12A228911