
### Instruction: help me answer this question Find the sum to n terms of the series 1 × 2 × 3 + 2 × 3 × 4 + 3 × 4 × 5 + …, think step by step
### Assistant:  , The answer is The sum of n terms of the series can be expressed as the sum of the first n terms of the sequence an, where an = n(n + 1)(n + 2).
