474787domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form k^3+3*k+1.at n=14A180275Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UH, HH and HD.at n=22A329700Primes having only {4, 7, 8} as digits.at n=38A385795Prime numbersat n=39602