70991domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that q^2 - p^2 + 1 is the square of a composite number where p and q are consecutive primes.at n=45A316934Number of series-reduced achiral free pure multifunctions (with empty expressions allowed) with one atom and n positions.at n=20A317884Prime numbersat n=7031