3908059domain: NPropertiesPrimalityPrimeyesAppears in sequencesSalié numbers.at n=7A005647T(n,0) + T(n,1) + ... + T(n,n), T given by A026714.at n=18A026721The number of 4-alternating permutations of [n].at n=14A250259Prime numbersat n=277131