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Group elements of array to get a count of each. Lambda expression in C#

how do I do this with a lambda expression?
int[] n1 = new int[18] { 5, 9, 1, 2, 3, 7, 5, 6, 7, 3, 7, 6, 8, 5, 4, 9, 6, 2 };
            var nQuery =
            from VrNum in n1
            group VrNum by VrNum into y
            select y;
            foreach (var i in nQuery)
            {
                Console.WriteLine("Number " + i.Key +" appears " +i.Count()+" times.");
            }

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Bill Prew

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Thanks.