57445domain: NAppears in sequencesThe sum of the Fibonacci and shifted tribonacci sequences.at n=21A186272Number of length n+2 0..2 arrays with no consecutive three elements summing to more than 2.at n=13A241608E.g.f. A(x) satisfies: A'(x) = 1 + A(x)*A'(x)^3.at n=5A376175