Scheduled Apex Class After nth Minute

Below is apex code for scheduled your schedulable class after n^th minute, just write the below code in developer console and execute it.

 Integer intMinute = 1;
ScheduleClass objScheduleClass = new ScheduleClass();
String strCronExpression = '0 '+String.ValueOf(DateTime.Now().AddMinutes(intMinute).Minute())+' * * * ?';
String strJobId = system.schedule('Test Job', strCronExpression, objScheduleClass);

**ScheduleClass = Apex class name which you want to schedule

THANK YOU