2711943423

Appears in sequences

• a(n) = 7*3^n.at n=18A005032
• a(n) = n*3^(n-4).at n=18A006234
• a(n) = (7*3^n - 4*0^n)/3.at n=19A082541
• Smallest number having n divisors ending with 1 or 9.at n=18A085645
• a(n) = 3*a(n-1) for n>2; a(0)=1, a(1)=3, a(2)=7.at n=20A141495
• Least term of A094179 with exactly 2n divisors.at n=18A204046
• Least term of A004767 with exactly 2n divisors.at n=18A204086
• Expansion of g.f. (1-2*x)/(1-9*x).at n=10A270472
• a(n) is the least number with exactly n divisors of the form 4*k+1.at n=18A364584