373370domain: NAppears in sequencesNumbers n such that 30*n+{1,7,11,17,19,23,29} are all prime.at n=7A1004200-sequence of reduction of triangular number sequence by x^2 -> x+1.at n=17A192244Numbers k such that there are exactly 7 primes between 30*k and 30*k+30.at n=37A385124