EntityQ2919059· pop 9· linked from 4 articlesexponential factorialSign in to saverecursive mathematical formulaConnectionscomplex numberEntityintegerEntitynumber theoryEntityreal numberEntityexponentiationEntityfactorialEntitygamma functionEntitytranscendental numberEntitymultiplicative inverseEntitygoogolplexEntityOn-Line Encyclopedia of Integer SequencesEntityrecurrence relationEntityMathWorldEntitytetrationEntityLiouville numberEntityhyperfactorialEntityCategoriesExponentialsFactorial and binomial topicsInteger sequencesLarge integers