Triangle T, read by rows, where T(n,k) = A008544(n-k)*C(n,k) where A008544 equals the triple factorials in column 0.
A136216
Triangle T, read by rows, where T(n,k) = A008544(n-k)*C(n,k) where A008544 equals the triple factorials in column 0.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =10a(4) =4a(5) =1a(6) =80a(7) =30a(8) =6a(9) =1a(10) =880a(11) =320a(12) =60a(13) =8a(14) =1a(15) =12320a(16) =4400a(17) =800a(18) =100a(19) =10a(20) =1a(21) =209440a(22) =73920a(23) =13200a(24) =1600a(25) =150a(26) =12a(27) =1a(28) =4188800a(29) =1466080
External references
- oeis: A136216