82026domain: NAppears in sequencesNumbers k such that 129*2^k+1 is prime.at n=23A032414Numbers n with property that n+41, n^2+41 and n^3+41 are all primes.at n=32A175260Expansion of Product_{k>=1} (1 + x^(3*k))^(3*k) / (1 + x^k)^k.at n=42A285294Least k such that prime(k) >= 2^n.at n=19A372684