74274

Appears in sequences

• a(0)=0, a(1)=1, a(n)=4a(n-1)+2 for n =3,5,7,..., a(n)=4a(n-1) for n =2,4,6,....at n=9A117615
• G.f. A(x) satisfies A(x) = 1 + x * A(x)^2 * (1 + A(x)^5).at n=5A379253