Triangle read by rows: T(n,k) is the number of permutations of n elements with transposition distance equal to k, n >= 1 and 0 <= k <= A065603(n).
A164366
Triangle read by rows: T(n,k) is the number of permutations of n elements with transposition distance equal to k, n >= 1 and 0 <= k <= A065603(n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =10a(8) =12a(9) =1a(10) =1a(11) =20a(12) =68a(13) =31a(14) =1a(15) =35a(16) =259a(17) =380a(18) =45a(19) =1a(20) =56a(21) =770a(22) =2700a(23) =1513a(24) =1a(25) =84a(26) =1932a(27) =13467a(28) =22000a(29) =2836
External references
- oeis: A164366