10553502domain: NAppears in sequencesNumbers k such that prime(k) == 7 (mod k).at n=18A023149Numbers k such that phi(prime(k)-1) == 0 (mod k).at n=28A067733Numbers n such that prime(n) + prime(n+1) is divisible by 2n + 1.at n=6A278693Numbers k such that A068902(k+1) <= A068902(k).at n=23A283053