a(n) = least common multiple of all cycle sizes in range [2^(n-1),(2^n)-1] of permutation A209861/A209862.

A209866

a(n) = least common multiple of all cycle sizes in range [2^(n-1),(2^n)-1] of permutation A209861/A209862.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =5a(6) =24a(7) =26a(8) =672a(9) =246a(10) =3755388a(11) =13827240a(12) =1768910220a(13) =99034598880a(15) =612823600

External references