53002domain: NAppears in sequencesNumber of (n+1) X (4+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.at n=9A250607Number of integer partitions of n of odd rank.at n=46A340692a(1) = 1; a(n) = Sum_{d|n, d < n} d * a(d)^(n/d).at n=29A348661