I've got a few question on calculating the number of elements of an order in a group (see this question and this question). This goes from either calculating all the elements of all the types of orders to calculating the number of elements of say order 20. I'm not sure what to do know because I asked a question on it and I didn't understand the answer so I tried asking for an explanation on the comments bit but I've had no responses and I know your not supposed to duplicate questions, or ask very similar questions.
What could I do now?