Triangle of coefficients of polynomials v(n,x) jointly generated with A207608; see Formula section.

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =8a(5) =3a(6) =1a(7) =15a(8) =17a(9) =3a(10) =1a(11) =24a(12) =54a(13) =26a(14) =3a(15) =1a(16) =35a(17) =130a(18) =120a(19) =35a(20) =3a(21) =1a(22) =48a(23) =265a(24) =398a(25) =213a(26) =44a(27) =3a(28) =1a(29) =63