32879domain: NAppears in sequencesNumbers k such that 197*2^k+1 is prime.at n=15A032475a(n) = floor(1/(zeta(5) - Sum_{h=1..n} 1/h^5)).at n=8A248234Number of Dyck paths of semilength n such that each level has exactly eight peaks or no peaks.at n=20A288115G.f.: Product_{k>=1} (1-prime(k)*x^prime(k)).at n=41A298159