Symphony, K. 74g (Mozart) numbered symphonies. The unnumbered symphonies (some, including K. 74g, published in supplements to the Alte-Mozart Ausgabe until 1910) are sometimes given numbers in the range 42 to 56, even though they were written earlier than Mozart's Symphony No. 41 (written in 1788). The symphony K. 74g is given the number 54 in this numbering scheme. This symphony (among others) was known to Ludwig Ritter von Köchel only by an incipit in the catalogue of Breitkopf & Härtel, and so he placed it in the Anhang of the Köchel catalogue as Anh. 216. A set of parts (now lost) was discovered
Rencontres numbers Rencontres numbers In combinatorial mathematics, the rencontres numbers are a triangular array of integers that enumerate permutations of the set { 1, ..., "n" } with specified numbers of fixed points: in other words, partial derangements. ("Rencontre" is French for "encounter". By some accounts, the problem is named after a solitaire game.) For "n" ≥ 0 and 0 ≤ "k" ≤ "n", the rencontres number "D" is the number of permutations of { 1, ..., "n" } that have exactly "k" fixed points. For example, if seven presents are given to seven different people, but only two are destined to