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MATH / In the sequence 0, 1, 1, 3, 6, 9, 27, ..., the first term is 0. Subsequent terms…

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problem

In the sequence 0, 1, 1, 3, 6, 9, 27, ..., the first term is 0.   Subsequent terms are produced by alternately adding and  multiplying by each successive integer beginning with 1.  For  instance, the second term is produced by adding  1 to the first term; the third term is produced by  multiplying the second term by 1; the fourth term  is produced by adding 2 to the third term; and so  on.  What is the value of the first term that is greater than 125?

level

Level 4

type

Algebra

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task_id: bcfc2c8f-2dc8-5157-9495-1c0ffeeb7d75
task_key: algebra--test--bcfc2c8f-2dc8-5157-9495-1c0ffeeb7d75
task_revision_id: 2
config / split: algebra / test

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