85712domain: NAppears in sequencesNumbers k such that (10^k - 1)/9 + 6 is prime.at n=17A097684Number of vertices of even degree in a cubic lattice n X n X n.at n=45A383585Integers k such that k + 1 has a divisor that is an anagram of k, which must have the same number of digits as k.at n=37A384597