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Abstract

An overlap chain of words is a sequence in which the last letters of each word form the first letters of the next, as in SPACE, CEILING, INGOT or SEVEN, EVENT, ENTRANCE. A complete overlap chain is one in which each letter participates in exactly one over-lap - that is, there can be no letters in the middle of the word no overlapping with the preceding or following ones (for example, IL in CEILING), nor can any letter overlap with both the preceding and following words (for example, EN in EVENT). To avoid uninteresting chains, I require also that each overlap must be at least two letters, which means that each word must be at least four letters long.

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