Omit the trailing zeros from double factorial of even numbers (A000165).

A375489

Omit the trailing zeros from double factorial of even numbers (A000165).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =48a(4) =384a(5) =384a(6) =4608a(7) =64512a(8) =1032192a(9) =18579456a(10) =37158912a(11) =817496064a(12) =19619905536a(13) =510117543936

External references