70647domain: NAppears in sequencesRow sums of triangle A173302.at n=38A173303Number of 2 X 2 matrices with all elements in {0,1,...,n} and determinant in {0,1,...,n}.at n=32A209995Number of (binary) heaps where n is the sum of their length and the size of the element set [k].at n=15A373632