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

Terms

a(0) =1a(1) =1a(2) =4a(3) =2a(4) =27a(5) =22a(6) =248a(7) =264a(8) =30a(9) =2830a(10) =3610a(11) =830a(12) =8a(13) =38232a(14) =55768a(15) =18746a(16) =1078a(17) =593859a(18) =961740a(19) =414720a(20) =46986a(21) =576a(22) =10401712a(23) =18326976a(24) =9457788a(25) =1593664a(26) =62682a(27) =112a(28) =202601898a(29) =382706674