Expansion of (1+3*x)/(1-8*x^2).

Terms

a(0) =1a(1) =3a(2) =8a(3) =24a(4) =64a(5) =192a(6) =512a(7) =1536a(8) =4096a(9) =12288a(10) =32768a(11) =98304a(12) =262144a(13) =786432a(14) =2097152a(15) =6291456a(16) =16777216a(17) =50331648a(18) =134217728a(19) =402653184a(20) =1073741824a(21) =3221225472a(22) =8589934592a(23) =25769803776a(24) =68719476736a(25) =206158430208a(26) =549755813888