Triangle read by rows: T(n,m) is the number of length n decorated permutations avoiding the word 0^m = 0...0 of m 0's, where 1 <= m <= n.
A334156
Triangle read by rows: T(n,m) is the number of length n decorated permutations avoiding the word 0^m = 0...0 of m 0's, where 1 <= m <= n.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =15a(6) =24a(7) =48a(8) =60a(9) =64a(10) =120a(11) =240a(12) =300a(13) =320a(14) =325a(15) =720a(16) =1440a(17) =1800a(18) =1920a(19) =1950a(20) =1956a(21) =5040a(22) =10080a(23) =12600a(24) =13440a(25) =13650a(26) =13692a(27) =13699a(28) =40320a(29) =80640
External references
- oeis: A334156