1271807domain: NPropertiesPrimalityPrimeyesAppears in sequencesG.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x))^3).at n=10A161797Primes p such that (3*p+q)/2, (p+3*q)/2, (3*q+r)/2 and (q+3*r)/2 are all prime, where q and r are the next primes after p.at n=21A332848Prime numbersat n=98038