Triangle T(n, k) = n! * (Harmonic number(n-k) - Harmonic number(k)), read by rows.

Terms

a(0) =0a(1) =1a(2) =-1a(3) =3a(4) =0a(5) =-3a(6) =11a(7) =3a(8) =-3a(9) =-11a(10) =50a(11) =20a(12) =0a(13) =-20a(14) =-50a(15) =274a(16) =130a(17) =40a(18) =-40a(19) =-130a(20) =-274a(21) =1764a(22) =924a(23) =420a(24) =0a(25) =-420a(26) =-924a(27) =-1764a(28) =13068a(29) =7308