292351domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers to which Mersenne primes 2^p-1 can be congruent mod k! (for k > 1).at n=31A145038Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11.at n=28A254951Prime numbersat n=25411