4870988domain: NAppears in sequencesa(1) = 1, a(n+1) = 2 * digit reversal of a(n).at n=15A095197Number of (n+2)X(6+2) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=7A231225