G.f. A(x) satisfies: 3*A(x) - 2*(1+x) = Series_Reversion( x/(2*A(x) - (1+x)) )/x.
A249933
G.f. A(x) satisfies: 3*A(x) - 2*(1+x) = Series_Reversion( x/(2*A(x) - (1+x)) )/x.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =77a(5) =1111a(6) =19389a(7) =391959a(8) =8942541a(9) =226359559a(10) =6281444909a(11) =189409746967
External references
- oeis: A249933