3-5-1. 3-5-2. 3-5-4. How Do You Find the Nth Term in an Arithmetic Sequence. Finding the 100th Term in a Sequence | Equation Basics. Holt McDougal - Lesson Tutorial Videos. Holt McDougal - Lesson Tutorial Videos. Holt McDougal - Lesson Tutorial Videos. Patterns in Sequences 1 | Equation Basics. Patterns in Sequences 2 | Equation Basics. Project.