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

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =5a(7) =3a(8) =2a(9) =8a(10) =17a(11) =22a(12) =10a(13) =5a(14) =29a(15) =91a(16) =106a(17) =94a(18) =35a(19) =14a(20) =140a(21) =431a(22) =701a(23) =582a(24) =396a(25) =126a(26) =42a(27) =661a(28) =2501a(29) =4067