38423222208domain: NAppears in sequencesa(n) = n^n * (n+1)^(n+1).at n=6A090205Numbers representable as x^x * y^y, with x > y > 1.at n=19A228174Number of (n+2)X(3+2) 0..1 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=13A251189