197552domain: NAppears in sequencesSequence defined by the recurrence formula a(n+1) = sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=1, k=-2 and l=0.at n=12A177111E.g.f. A(x) satisfies A'(x) = 1 + A(2 * log(1+x)).at n=6A355208