What occurs in a sequence of events that seems to be planned or arranged, even though it is accidental?

The term that best describes a sequence of events that appears to be planned or arranged, despite being accidental, is coincidence. Coincidence refers to the occurrence of events that happen at the same time or in a seemingly related manner without any deliberate intention behind them. This can give the impression of a connection or a purposeful design when, in reality, there is none.

Serendipity, although it might sound similar, is more about the unexpected fortune or a happy accident leading to a beneficial discovery, rather than just the occurrence of events appearing interconnected. Configuration refers to the arrangement or setup of something and does not pertain to sequence or chance events. Consequence relates to the outcome or result of an action or event rather than the nature of occurrences that appear inexplicably linked. Thus, coincidence is the most accurate term for events that align fortuitously without prior intent.