Generate a series from'start 'to'end' and for each step multiply the value with the value provided in step. Using a step of 5 produces a list like: 5, 25, 125, 625 since 5 multiplied by 5 (step) equals 25, and that multiplied by 5 equals 125, which multiplied by the same step-value of 5 equals 625.
Meitsje in searje fan 'start' oant 'ein' en fermannichfâldigje by elke stap de wearde mei de faktor fan de opjûne stapwearde. Hjirtroch ûntstiet in (mjitkundige) searje wêryn' t elke wearde 'stapwearde' kear grutter is as de foarôfgeande wearde (ik neam dit mar in searje omdat it wurd rige yn in rekkenblêd al in oare betsjutting hat). Bygelyks: Mei in startwearde 3 en in stapwearde 5 krije jo de searje 3; 15; 75; 375, ensafuorthinne, elk getal is 5 kear sa grut as syn foargonger.