Fourth column of triangle A035342; related to A045894.
A035520
Fourth column of triangle A035342; related to A045894.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =30a(5) =705a(6) =15960a(7) =370125a(8) =8998290a(9) =231416325a(10) =6314962500a(11) =182894567625
External references
- oeis: A035520