339375domain: NAppears in sequencesNumbers k for which 2*k+7, 4*k+7, 6*k+7, 8*k+7, 10*k+7 and 12*k+7 are primes.at n=24A210505Expansion of Product_{k>0} (1 - x^k)^(5*k).at n=26A316464