The formula for any arithmetic sequence is an a1 d n - 1 where an represents the value of the n th term a1 represents the value of the first term d represents the common difference and n represents the term number. N th nth term in the arithmetic sequence the arithmetic sequence formula should help you to do so. The explicit formula for the nth term of the sequence 1010 is an 12 12 1n wherein the index starts at 0.
T n an2 bn c T n a n 2 b n c It is important to note that the first differences of a quadratic sequence form an arithmetic sequence.
The first term of an arithmetic sequence is a1 the common difference is d. The Formula of Arithmetic Sequence. The first term of an arithmetic sequence is a1 the common difference is d. Or more sensibly we could use the general formula for determining an arithmetic series by substituting a3 d7 and n20.