Number of permutations of length n by rises.
A001280
Number of permutations of length n by rises.
Terms
- a(0) =11a(1) =309a(2) =5805a(3) =95575a(4) =1516785a(5) =24206055a(6) =396475975a(7) =6733084365a(8) =119143997490
External references
- oeis: A001280