G.f. A(x) satisfies: Sum_{n>=1} (x + (-1)^n*A(x))^n = 0.
A317998
G.f. A(x) satisfies: Sum_{n>=1} (x + (-1)^n*A(x))^n = 0.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =96a(4) =640a(5) =4480a(6) =32768a(7) =247552a(8) =1915904a(9) =15113216a(10) =121069568a(11) =982269952a(12) =8054767616a(13) =66651537408a(14) =555846729728
External references
- oeis: A317998