69656domain: NAppears in sequencesNumbers n such that 8*10^n + 5*R_n - 2 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=14A103084Row sums of triangle A129503.at n=45A129504Expansion of Product_{k>=1} (1 - x^(6*k)) * (1 + x^k) / (1 - x^k).at n=29A280874