Expansion of 1/(2*sqrt(1-6*x+x^2) - 1).

Terms

a(0) =1a(1) =6a(2) =44a(3) =336a(4) =2600a(5) =20232a(6) =157864a(7) =1233528a(8) =9646328a(9) =75470472a(10) =590627208a(11) =4623006744a(12) =36189493080a(13) =283315538664