Terms. Arithmetic Sequence-A sequence in which each term is a constant amount greater or less than the previous term. In this type of sequence, a n+1 = a n + d, where d is a constant. Common Ratio-In a geometric sequence, the ratio r between each term and the previous term.
In addition to much of Mosquito County's territory being reallocated to Hillsborough, Levy, and Marion counties, St. Lucia County is also created from former Mosquito County territory, spanning halfway across Florida from the East coast and through much of central Florida.
In 1824, the area to the south of St. Johns County was designated Mosquito County, with its seat at Enterprise. The county's name was changed to Orange County in 1845 when Florida became a state, and over the next 70 years several other counties were created. Seminole County was one of the last to split.