Math

Sequence Calculator

Calculate arithmetic, geometric, and Fibonacci sequences

Sequence Type*

First Term (a₁)*

Common Difference (d)

Number of Terms (n)*

Find nth Term

Sequence Information

aₙ = a₁ + (n-1)d = 1 + (n-1) × 1

Sum of Sequence

Sum of all terms in the sequence

Average

5.50

Average of all terms

Last Term

Value of the last term

First {n} terms of the sequence

View details (10)

Item	Value
Term 1 The 1th term of the sequence	1
Term 2 The 2th term of the sequence	2
Term 3 The 3th term of the sequence	3
Term 4 The 4th term of the sequence	4
Term 5 The 5th term of the sequence	5
Term 6 The 6th term of the sequence	6
Term 7 The 7th term of the sequence	7
Term 8 The 8th term of the sequence	8
Term 9 The 9th term of the sequence	9
Term 10 The 10th term of the sequence	10

Arithmetic: a_n = a_1 + (n-1)*d
Geometric: a_n = a_1 * r^(n-1)

Supported inputs

Input	Description
Sequence Type	Select the type of sequence to calculate Arithmetic Sequence · Geometric Sequence · Fibonacci Sequence · Square Numbers · Cube Numbers · Triangular Numbers
First Term (a₁)	First term of the sequence
Common Difference (d)	Common difference for arithmetic sequence
Common Ratio (r)	Common ratio for geometric sequence
Number of Terms (n)	Number of terms to calculate
Find nth Term	Find the value of a specific term

Formula

Arithmetic: a_n = a_1 + (n-1)*d
Geometric: a_n = a_1 * r^(n-1)

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