64314domain: NAppears in sequencesa(n) = Sum_{j=0..n} j*Fibonacci(j).at n=17A014286Convolution of A030195(n) (generalized (3,3)-Fibonacci) with itself.at n=7A099432Triangle read by rows: T(n,k) is the number of sequences of length n on the alphabet {0,1,2,3}, containing k subsequences 00 (0<=k<=n-1).at n=38A128235