Two-level search design for main-effect plus two plan
One important class of screening designs is the search design first proposed by Srivastava (1975). A new class of two-level factorial search designs which are capable of estimating all main-effect plus two interactions is provided. We first give a necessary and sufficient condition for the main-effect plus two plan and then show that the proposed search design always satisfies such a condition.
Chatterjee, K., Deng, L., & Lin, D. (2001). Two-level search design for main-effect plus two plan. Metrika, 54 (3), 233-240. https://doi.org/10.1007/s184-002-8366-1