G.f. satisfies: A(x) = sqrt(1 + 2*x*A(x)^4 + 3*x^2*A(x)^6).
A222050
G.f. satisfies: A(x) = sqrt(1 + 2*x*A(x)^4 + 3*x^2*A(x)^6).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =30a(4) =209a(5) =1573a(6) =12478a(7) =102714a(8) =869193a(9) =7514445a(10) =66083025a(11) =589294500a(12) =5316256278a(13) =48431659786a(14) =444928748618
External references
- oeis: A222050