Selecting Consecutive Entries with LINQ to Entities

Question

I have a database table with rows that each contain a sequential index. I want to select groups of rows that are consecutive based upon this index column. For example, if I

Answer 1

I think this might work pretty efficiently (C# though):

int[] query = { 1, 3, 4, 5, 7, 9, 10, 11, 12, 15, 16 };
int count = 3;
List> numbers = query
   .Where(p => query.Where(q => q >= p && q < p + count).Count() == count)
   .Select(p => Enumerable.Range(p, count).ToList())
   .ToList();