Expansion of series_reversion( x/(1 + sum(k>=1, x^A032766(k)) ) ) / x.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =6a(5) =16a(6) =40a(7) =107a(8) =307a(9) =893a(10) =2597a(11) =7646a(12) =22878a(13) =69162a(14) =210402a(15) =644098a(16) =1984598a(17) =6149428a(18) =19143220a(19) =59840692a(20) =187781992a(21) =591343894a(22) =1868106990a(23) =5918537492a(24) =18800935948a(25) =59869902152a(26) =191081899648a(27) =611138052146