Use of a Recurrence Formula in Generating Intermodulation-Free Frequency Lists

A recurrence formula is developed that can be used to generate an intermodulation-free frequency list. A frequency list is intermodulation-free if it satisfies one or more linear inequalities. Although the list developed here satisfies a simple linear inequality, it is hoped that this presentation will provide insight into developing recurrence formulas that can be used to generate lists that satisfy more complicated linear inequalities.