Triangle of coefficients of a certain sequence of polynomials f_n(x) arising in connection with deformations of coordinate rings of type D Kleinian singularities.

A097418

Triangle of coefficients of a certain sequence of polynomials f_n(x) arising in connection with deformations of coordinate rings of type D Kleinian singularities.

Terms

    a(0) =1a(1) =2a(2) =0a(3) =3a(4) =2a(5) =0a(6) =4a(7) =8a(8) =8a(9) =0a(10) =5a(11) =20a(12) =56a(13) =56a(14) =0a(15) =6a(16) =40a(17) =216a(18) =608a(19) =608a(20) =0a(21) =7a(22) =70a(23) =616a(24) =3352a(25) =9440a(26) =9440a(27) =0a(28) =8a(29) =112

External references