Coefficients of 1/(Sum_{k>=0} [(k+1)*r]*(-x)^k), where r = sqrt(7/3) and [ ] = floor.

Terms

a(0) =1a(1) =3a(2) =5a(3) =9a(4) =18a(5) =36a(6) =72a(7) =144a(8) =288a(9) =576a(10) =1152a(11) =2304a(12) =4608a(13) =9216a(14) =18432a(15) =36864a(16) =73728a(17) =147456a(18) =294911a(19) =589818a(20) =1179628a(21) =2359242a(22) =4718457a(23) =9436860a(24) =18873612a(25) =37747008a(26) =75493584a(27) =150986304a(28) =301970880a(29) =603938304