99640domain: 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)=5, k=0 and l=-2.at n=8A176757a(n) = 12*n^3 + 9*n^2 + 2*n.at n=20A191745a(n) = A008412(n-1) + A008412(n-2) for n>1, a(0)=0, a(1)=1.at n=28A287324