Arithmetic Sequence Calculator
Enter the first term, the common difference and the term number n to find any term of an arithmetic sequence instantly. The tool also calculates the sum of the first n terms and lists the sequence, showing the working for every result.
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How to use
- Enter the first term a.
- Enter the common difference d (the gap between terms).
- Enter n.
- The nth term, the sum of the first n terms and the sequence will be shown.
Note: If d is negative the sequence will decrease — the formula stays the same.