573308928

Appears in sequences

• a(n) = Product_{k=1..n-1} gcd(k,n).at n=23A051190
• Expansion of x*(1+3*x+12*x^2)/(1-24*x^3).at n=19A076506
• Expansion of 3*x*(1-x)*(1+2*x+6*x^2)/(1-24*x^3).at n=19A076509
• Expansion of 3*(1+2*x+6 x^2)/(1-24*x^3).at n=18A076510
• a(n) = (2*n+1) * (2*n)! / (sqrt(4*(n+1)*Product_{k=1..2*n+1} lcm(k, 2*n+2-k))).at n=21A082292
• Largest order of a solvable subgroup of the symmetric group S_n.at n=20A099732
• Number of labeled directed trees with n nodes.at n=7A136719
• A coding sequence of binary based integers using powers of {2,3} for {0,1}.at n=14A176904
• Numbers k such that k^2 is sum of two positive 7th powers.at n=12A291828
• Least y for which x^6 + y^7 = A300568(n)^8 for some x > 1.at n=0A303268
• Number of spanning trees in the n X 2 king graph.at n=8A338100