For the nth term an For the sum of the first three terms a1 a2 a3. This sequence has a common difference of 2a 2 a between consecutive terms. In other words an a1 dn1 a n a 1 d n - 1.
The first term of an arithmetic sequence is a1 the common difference is d.
What is the formula for the sequence 10 8 6 4. The Formula of Arithmetic Sequence. What is the explicit formula for the nth term of the sequence 1010. The first term of an arithmetic sequence is a1 the common difference is d.