G.f. A(x) equals the series obtained by removing all factors of 3 from the coefficients in 1 + x*A(x)^3.
A378578
G.f. A(x) equals the series obtained by removing all factors of 3 from the coefficients in 1 + x*A(x)^3.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =13a(5) =19a(6) =52a(7) =412a(8) =73a(9) =1405a(10) =11735a(11) =20000a(12) =7300a(13) =388606a(14) =664316a(15) =2325118a(16) =20832709a(17) =11815463a(18) =95438089a(19) =861817318a(20) =1495813613a(21) =5231996647a(22) =47291366710a(23) =3025568936a(24) =199838851432a(27) =439614522008
External references
- oeis: A378578