81409domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 512*k+1.at n=31A076339Primes of the form 1024n + 513.at n=12A105132Primes of the form 20*k^2 + 32*k + 13.at n=27A154414Primes which are triangular numbers plus 3.at n=35A159047Prime numbersat n=7966