Related to quintic factorial numbers A008548.
A034687
Related to quintic factorial numbers A008548.
Terms
- a(0) =1a(1) =15a(2) =275a(3) =5500a(4) =115500a(5) =2502500a(6) =55412500a(7) =1246781250a(8) =28398906250a(9) =653174843750
External references
- oeis: A034687