Find all positive integer $n$ with the property that there is a partition of the set $({n, n + 1, n + 2, n + 3, n + 4, n + 5})$
Find the set of $n\in\Bbb Z^+$ with $M=\{n,n+1,n+2,n+3,n+4,n+5\}$ partitionable into two sets