EntityQ3900011· pop 7· linked from 21 articlesAlternating permutationSign in to savetype of permutation studied in combinatoricsConnectionstrigonometric functionEntityeven and odd functionsEntitygenerating functionEntityEuler numberEntitymathematicsEntitydifferential equationEntitydigital object identifierEntityDonald KnuthEntitycombinatoricsEntityempty setEntityJohann BernoulliEntityTaylor seriesEntitypermutationEntityJSTOREntityVladimir ArnoldEntityQ118398EntitybijectionEntityCambridge University PressEntityCatalan numberEntityOn-Line Encyclopedia of Integer SequencesEntityCategoriesEnumerative combinatoricsPermutations