339750

Appears in sequences

• Number of semi-lone-child-avoiding rooted trees with at most one distinct non-leaf branch directly under any vertex.at n=27A331933
• G.f. A(x) satisfies A(x^2)^3/A(x^4)^3 = 1 + (A(x)/A(x^4) - 1)^2.at n=47A376229