for example, "n" = 2 gives the thabit prime 11, and "n"−1 = 1 gives the thabit prime 5, and our third term is 71. then, 2=4, multiplied by 5 and 11 results in 220, whose divisors add up to 284, and 4 times 71 is 284, whose divisors add up to 220.