What is the formula for finding the 5th term in the number sequence 3, 7, 11, 15, 19, ...?
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What is the formula for finding the 5th term in the number sequence 3, 7, 11, 15, 19, ...?
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Answer:
2^n - 1 for n > 1
Step-by-step explanation:
n1 = 2–1 = 1
n2 = 4-1 = 3
n3 = 8-1 = 7
n4 =16-1 = 15
n5 = 32-1 = 31