229249domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = a(n-1) + a(n-2) + 7 where a(0) = a(1) = 1.at n=22A111733Primes p of the form |prime(n+2)^2-prime(n+1)^2-prime(n)^2|, (absolute values).at n=36A176134Primes having only {2, 4, 9} as digits.at n=32A385785Prime numbersat n=20370