Recip transform of 2*(1 + x^2 + x^6)-1/(1-x).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =15a(6) =57a(7) =169a(8) =443a(9) =1211a(10) =3855a(11) =13495a(12) =46749a(13) =154397a(14) =496203a(15) =1611499a(16) =5395893a(17) =18473853a(18) =63472005a(19) =216711453a(20) =737070887a(21) =2515433411a(22) =8649866677a(23) =29935649141a(24) =103896813439a(25) =360791085751