10 13 16 19. Therefore the geometric sequence formula is a n ar n-1. Arithmetic and Geometric Sequences Calculator.
S n 2a 1 n 1d 2 n.
A n a 1 r n 1. Which is a shift to the right by one unit of f x mx b. Geometric series is the sum of all the terms of the geometric sequences ie. Arithmetic and Geometric Series Notation.