1045216domain: NAppears in sequencesa(1)=3, a(2)=2, a(n)=3*a(n-1) + 2*a(n-2).at n=11A189736Number of n-length words over an 8-ary alphabet {a_1,a_2,...,a_8} avoiding consecutive letters a_i, a_{i+1}.at n=7A277671