2136000domain: NAppears in sequencesConvolution of Fibonacci F(n+1), n >= 0, with F(n+3), n >= 0.at n=23A067331a(n) = a(n-1) + a(n-2) + F(n), with a(0) = 0, a(1) = 1, a(2) = a(1) + a(0), a(3) = a(2) + a(1), a(4) = a(3) + a(2) + 2.at n=26A166106a(n) = n^3*(2*n^2+1)/3.at n=20A272125