Wyo. Stat. § 1-6-203: Notice for specified number of weeks.

In all cases where under the laws a notice is required or permitted to be published for a specified number of weeks, it is sufficient that the publication be made once each week for the number of issues corresponding to the number of weeks for which such publication is required to be made, provided that not more than twenty (20) days shall intervene between the date of the last publication and the time set for the intended action. In no case shall the notice given for a longer time than required by law be held defective for that reason.