5331476

Appears in sequences

• A continued fraction.at n=16A001112
• Denominators of continued fraction convergents to sqrt(18).at n=9A041027
• Denominators of continued fraction convergents to sqrt(450).at n=13A041857
• a(n) = Sum_{k=0..floor(n/6)} C(n-3k,3k) * 2^(n-6k).at n=19A100137
• y-values in the solution to x^2 - 18*y^2 = 1.at n=5A202299
• Binomial transform of A135318.at n=18A373245
• a(n) = 4*a(n-1) -5*a(n-2) +2*a(n-3) +2*a(n-4) for a(0) = a(1) = 0, a(2) = 1, a(3) = 4 for n >= 4.at n=19A373358