Begin with n and place (n-1) on the least significant side, place (n-2) on the most significant side and so on until a 1 is placed.

A089369

Begin with n and place (n-1) on the least significant side, place (n-2) on the most significant side and so on until a 1 is placed.

Terms

    a(0) =1a(1) =21a(2) =132a(3) =2431a(4) =13542a(5) =246531a(6) =1357642a(7) =24687531a(8) =135798642a(9) =24681097531

External references