Related to quartic factorial numbers A007696.
A034255
Related to quartic factorial numbers A007696.
Terms
- a(0) =1a(1) =10a(2) =120a(3) =1560a(4) =21216a(5) =297024a(6) =4243200a(7) =61526400a(8) =902387200a(9) =13355330560a(10) =199115837440
External references
- oeis: A034255