Sequence that has addition or (subtractions*) subtraction will be +(-4)
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It is the start of an arithmetic sequence.
The sequence is neither arithmetic nor geometric.
Arithmetic Sequence
neither
An arithmetic sequence is a group or sequence of numbers where, except for the first number, each of the subsequent number is determined by the same rule or set of rules. * * * * * The above answer is incorrect. The rule can only be additive: it cannot be multiplicative or anything else.