Obverse convolution (n)**(2^n); see Comments.

A374859

Obverse convolution (n)**(2^n); see Comments.

Terms

    a(0) =1a(1) =4a(2) =36a(3) =640a(4) =21600a(5) =1370880a(6) =163924992a(7) =37150064640

External references