784147392domain: NAppears in sequencesa(n) = n^(n-2) * (n-1)^(n-1).at n=5A070285Number of (n+2)X(2+2) 0..1 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=13A251188Numbers of multiplicative persistence 8 which are themselves the product of digits of a number.at n=1A350187