series (mathematics) the sum of a finite or infinite sequence of expressions
arithmetic progression (mathematics) a progression in which a constant is added to each term in order to obtain the next term; "1-4-7-10-13- is the start of an arithmetic progression"
geometric progression (mathematics) a progression in which each term is multiplied by a constant in order to obtain the next term; "1-4-16-64-256- is the start of a geometric progression"
Progression -
the act of moving forward (as toward a goal)
retreat the act of withdrawing or going backward (especially to escape something hazardous or unpleasant)
move,
motion,
movement the act of deciding to do something; "he didn't make a move to help"; "his first move was to hire a lawyer"
push the act of applying force in order to move something away; "he gave the door a hard push"; "the pushing is good exercise"
career,
life history the general progression of your working or professional life; "the general had had a distinguished career"; "he had a long career in the law"
march a steady advance; "the march of science"; "the march of time"
