299537289

Appears in sequences

• Numerators of continued fraction convergents to sqrt(5).at n=14A001077
• a(n) = 18*a(n-1) - a(n-2).at n=7A023039
• Numerators of continued fraction convergents to sqrt(20).at n=13A041030
• Numerators of continued fraction convergents to sqrt(80).at n=13A041142
• Numerators of continued fraction convergents to sqrt(845).at n=9A042630
• Expansion of x*(1 + x - 2*x^2) / ( 1 - 4*x^2 - x^4).at n=29A059973
• a(1)=1; for n > 2, a(n) is the smallest integer > a(n-1) such that frac(sqrt(5)*a(n)) < frac(sqrt(5)*a(n-1)).at n=26A079497
• a(n) = (F(2*n-1) + F(2*n+1))*(5/6 - cos(2*Pi*n/3)/3), where F(n) = Fibonacci(n).at n=21A128052
• Numerators of continued fraction convergents to sqrt(5/4).at n=13A153316
• Array of ((k^n)+(k^(-n)))/2 where k=(sqrt(x^2+1)+x)^2 for integers x>=1.at n=37A188645
• a(0)=a(1)=1, a(n+2) = a(n+1) + a(n) - A128834(n).at n=42A226956
• 64*n^7 - 112*n^5 + 56*n^3 - 7*n.at n=9A243133
• a(n) = T(n,n+2) where T(n,x) is a Chebyshev polynomial of the first kind.at n=7A342206