3273527domain: NPropertiesPrimalityPrimeyesAppears in sequencesLesser of emirps (pairs) with a prime number of only prime digits.at n=28A137834Emirps made up of a prime number of only prime digits including all of 2,3,5,7.at n=20A137837Number of polycubes of size n and symmetry class EE.at n=22A376981Prime numbersat n=235144