WILL GIVE BRAINLIEST PLEASE HELP!!

Write the first 4 terms of the sequence if a1=486 and an=1/3an-1.

A.
18, 54, 162, 486
B.
486, 1,458, 4,374, 13,122
C.
486, 483, 480, 477
D.
486, 162, 54, 18

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