Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =5a(5) =1a(6) =27a(7) =40a(8) =14a(9) =1a(10) =248a(11) =419a(12) =200a(13) =30a(14) =1a(15) =2830a(16) =5308a(17) =3124a(18) =700a(19) =55a(20) =1a(21) =38232a(22) =78070a(23) =53620a(24) =15652a(25) =1960a(26) =91a(27) =1a(28) =593859a(29) =1301088