Recip transform of 2*(1 + x^5)-1/(1-x).

Terms

a(0) =1a(1) =1a(2) =3a(3) =11a(4) =45a(5) =195a(6) =887a(7) =4171a(8) =20113a(9) =98913a(10) =494211a(11) =2501643a(12) =12801697a(13) =66118683a(14) =344216175a(15) =1804412607a(16) =9516313329a(17) =50457415057a(18) =268812773283