54048

Appears in sequences

• Number of permutations of 1..n with the number moved left exceeding the number moved right by 2 or more.at n=8A179568
• Number of permutations of 1..n+7 with the number moved left exceeding the number moved right by n or more.at n=1A179582
• Numbers k such that sopfr(k) = tau(k)^2.at n=32A305026
• a(n)=x is the least integer such that gcd(sigma(x), sigma(x+1)) = 2*n.at n=46A322569