310968905domain: NAppears in sequencesa(n) = 5*a(n-1) + 6*a(n-2), a(0) = 0, a(1) = 1.at n=12A015540Main diagonal of array A083861.at n=12A082297a(n) = (n^n - 1)*(n^n + 1)/(n + 1).at n=6A280797a(n) = p(0,n), where p(x,n) is the strong divisibility sequence of polynomials based on sqrt(6) as in A327323.at n=11A329014