87391domain: NAppears in sequencesNumber of (n+1) X (2+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=16A231390Sequence of pairwise relatively prime numbers of class P_7 (see comment in A275246).at n=31A275252