Expansion of 1/(1-x*(1-7*x)).

Terms

a(0) =1a(1) =1a(2) =-6a(3) =-13a(4) =29a(5) =120a(6) =-83a(7) =-923a(8) =-342a(9) =6119a(10) =8513a(11) =-34320a(12) =-93911a(13) =146329a(14) =803706a(15) =-220597a(16) =-5846539a(17) =-4302360a(18) =36623413a(19) =66739933a(20) =-189623958a(21) =-656803489a(22) =670564217a(23) =5268188640a(24) =574239121a(25) =-36303081359a(26) =-40322755206a(27) =213798814307