I have a question

Here goes...

Use T-type flip-flops to design a counter with the following repeated binary sequence: 1,5,2,6,3

Please Help me
Cheers
Chris

 

Do you mean TTL (74xx series) IC's? (Transistor-Transistor Logic)

Your sequence, translated from Decimal to Binary, would be:
001 (1)
101 (5)
010 (2)
110 (6)
011 (3)

Rather a strange sequence... is this a homework assignment?

 

You will need some extra logic to steer the toggles to make the correct sequence. Think AND, NAND and perhaps NOR.