Array read by antidiagonals upwards: T(d,n) = number of d-dimensional permutations of n letters (d >= 0, n >= 1).
A249026
Array read by antidiagonals upwards: T(d,n) = number of d-dimensional permutations of n letters (d >= 0, n >= 1).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =2a(5) =3a(6) =1a(7) =2a(8) =6a(9) =4a(10) =1a(11) =2a(12) =12a(13) =24a(14) =5a(15) =1a(16) =2a(17) =24a(18) =576a(19) =120a(20) =6a(21) =1a(22) =2a(23) =48a(24) =55296a(25) =161280a(26) =720a(27) =7a(28) =1a(29) =2
External references
- oeis: A249026