Triangle of coefficients of certain numerator polynomials N(n,x).

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =2a(5) =1a(6) =1a(7) =10a(8) =17a(9) =2a(10) =1a(11) =37a(12) =181a(13) =111a(14) =6a(15) =1a(16) =126a(17) =1530a(18) =2624a(19) =741a(20) =18a(21) =1a(22) =422a(23) =11607a(24) =43940a(25) =34063a(26) =4950a(27) =57a(28) =1a(29) =1422