Recip transform of 2*(1 + x^5 + x^6)-1/(1-x).

Terms

a(0) =1a(1) =1a(2) =3a(3) =11a(4) =45a(5) =195a(6) =885a(7) =4153a(8) =19983a(9) =98055a(10) =488805a(11) =2468545a(12) =12602743a(13) =64937493a(14) =337264163a(15) =1763752075a(16) =9279601413a(17) =49084160037a(18) =260867197263