47199domain: NAppears in sequencesa(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026736.at n=22A026746Number of tilings of a 5 X n rectangle using n pentominoes of shapes F, I, L.at n=12A249762Number of compositions of n with weakly increasing differences.at n=38A325546