convert list object to json in c#

I have an object model that looks like this:

public class Myclass
{
    public int Id { get; set; }
    public string  name { get; set; }
    public int age { get; set; }
}

public ContentResult GetList(List<Myclass> model)
{

    var list = JsonConvert.SerializeObject(
        model,
        Formatting.Indented,
        new JsonSerializerSettings()
        {
            ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
        });

    return Content(list, "application/json");
}

I need OUTPUT:

[[1,"name1",23],[2,"name2",30],[3,"name3",26],[4,"name4",29]]