Counter sequence ?

I need to design a count sequence of 4,2,1,8 in decimal. It Can be initiated with a push button or toggle switch. can be detected in hardware or software and displayed on a 7 segment display(trainer). count sequence can be accomplished by using a parallel load register or any counter design. NEED HELP I AM CLUELESS?? any help would be great, diagrams would be better like multisim or sketching something.

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