32584domain: NAppears in sequencesSubmain diagonal of array A265903: a(n) = A265903(n+1, n).at n=9A265909Number of 2 X 2 matrices having entries in {0,1,...,n} and determinant in the closed interval [-n,n] with no entry repeated.at n=23A279063Number of partitions of n^2 into exactly n nonzero squares.at n=22A319435