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) =29a(5) =23a(6) =274a(7) =292a(8) =36a(9) =3145a(10) =4068a(11) =994a(12) =16a(13) =42294a(14) =62861a(15) =22250a(16) =1512a(17) =651227a(18) =1075562a(19) =484840a(20) =61027a(21) =1060a(22) =11295242a(23) =20275944a(24) =10867381a(25) =1977879a(26) =93188a(27) =280a(28) =217954807a(29) =418724047