908879domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of Lyndon compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime.at n=26A328669Primes p such that p+2, (p^2-5)/2-p, (p^2-1)/2+p, and (p^2+3)/2+3*p are all prime.at n=13A352951Prime numbersat n=71936