475103domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = numerator of b(n), where b(1) = 1, b(n+1) = (sum{k=1 to n} b(k))/product{j=1 to n} b(j).at n=13A127678The prime(n)-th prime number ending in prime(n), or 0 if none exists.at n=26A238331Prime numbersat n=39626