361267200

Appears in sequences

• Number of ways of folding a 2 X 2 X ... X 2 n-dimensional map.at n=6A001417
• A062401(x)=phi[sigma(x)] function is iterated; initial value=2^n; a(n)=smallest term of trajectory.at n=28A097000
• a(n) = 3*2^(2*n-1)*(n-1)*n^3*binomial(2*n,n)^2, a closed form for a triple binomial sum involving absolute values.at n=4A272913