33480783

Appears in sequences

• Largest order of automorphism group of a tournament with n nodes.at n=33A000198
• Largest order of automorphism group of a tournament with n nodes.at n=34A000198
• a(n) = 7*3^n.at n=14A005032
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*9^j.at n=29A038299
• Let H_n = n-th Hilbert matrix; sequence gives 1 / ( det(H_n) * denominator(permanent(H_n)) ).at n=31A061914
• Smallest lucky number that is the product of n lucky numbers.at n=14A064703
• Coefficient of the highest power of q in the expansion of nu(0)=1, nu(1)=b and for n >= 2, nu(n) = b*nu(n-1) + lambda*(n-1)_q*nu(n-2) with (b,lambda)=(2,3), where (n)_q = (1+q+...+q^(n-1)) and q is a root of unity.at n=30A072985
• a(n) = (7*3^n - 4*0^n)/3.at n=15A082541
• a(n) = 3*a(n-1) for n>2; a(0)=1, a(1)=3, a(2)=7.at n=16A141495
• a(n) = n*9^n.at n=7A158749
• a(n) = 3*a(n-2) for n > 2; a(1) = 1; a(2) = 7.at n=29A166481
• a(n+2) = 3*a(n), starting 4,7.at n=29A228879
• Expansion of g.f. (1-2*x)/(1-9*x).at n=8A270472