551532

Appears in sequences

• a(n) = 82*a(n-1) + a(n-2), where a(0) = 0, a(1) = 1.at n=4A292423
• a(0) = 4; a(n) = Pell(4*n)/Pell(n) for n > 0.at n=5A383740
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of g.f. x/(1 - A002203(k)*x + (-1)^k*x^2).at n=49A383742