Triangle read by rows: T(n,k) gives n! times the coefficient of x^k in the polynomial that describes the number of permutations on x letters with major index n.
A342645
Triangle read by rows: T(n,k) gives n! times the coefficient of x^k in the polynomial that describes the number of permutations on x letters with major index n.
Terms
- a(0) =1a(1) =-1a(2) =1a(3) =-2a(4) =-1a(5) =1a(6) =0a(7) =-7a(8) =0a(9) =1a(10) =0a(11) =-14a(12) =-13a(13) =2a(14) =1a(15) =120a(16) =-46a(17) =-65a(18) =-15a(19) =5a(20) =1a(21) =0a(22) =516a(23) =-356a(24) =-165a(25) =-5a(26) =9a(27) =1a(28) =5040a(29) =1392
External references
- oeis: A342645