699161domain: NAppears in sequencesNumber of (n+1) X (4+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.at n=10A251133Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes or outdegrees larger than nine.at n=15A292215