543050domain: NAppears in sequencesNumber of ordered rooted trees with n non-root nodes and all outdegrees <= four.at n=13A036766Number of strings of numbers x(i=1..n) in 0..7 with sum i*x(i) equal to n*7.at n=10A184701Number of strings of numbers x(i=1..11) in 0..n with sum i*x(i) equal to n*11.at n=6A184711