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Generalized derangement numbers
From OeisWiki
- No fixed unordered 1-tuples from : derangement numbers (complete derangement numbers, number of derangements, number of complete derangements)
- No fixed unordered -tuples from : k-derangement numbers (complete k-derangement numbers, number of k-derangements, number of complete k-derangements)
- fixed unordered 1-tuples from : rencontres numbers (partial derangement numbers, number of partial derangements)
- fixed unordered k-tuples from : k-rencontres numbers (k-partial derangement numbers, number of partial k-derangements)
External links
- Anthony, Fraticelli, Generalized Derangements, 2009.
- Philip Feinsilver and John McSorley, Zeons, Permanents, the Johnson Scheme, and Generalized Derangements, International Journal of Combinatorics, Volume 2011, Article ID 539030, 29 pages; doi:10.1155/2011/539030.