236600domain: NAppears in sequencesa(n) = (n+1)*(n+2)^2*(n+3)*(n+4)*(n+5)*(2*n+3)/720.at n=11A108681Number of (n+2) X 5 binary arrays avoiding patterns 001 and 101 in rows and columns.at n=10A202197Number of 2 X 2 matrices with entries in {0,1,...,n} and even trace with no entries repeated.at n=27A280056