Expansion of g.f. A(x) satisfying A(x) = x + A(x/(1-x)) * A(x/(1+x)).
A374569
Expansion of g.f. A(x) satisfying A(x) = x + A(x/(1-x)) * A(x/(1+x)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =75a(6) =316a(7) =1450a(8) =7184a(9) =38261a(10) =217216a(11) =1308305a(12) =8329854a(13) =55833303a(14) =392785346a(15) =2892412823a(16) =22236871782a(17) =178094372433
External references
- oeis: A374569