4517251249

Appears in sequences

• a(n) = 10*a(n-1) - a(n-2); a(0) = 1, a(1) = 5.at n=10A001079
• Numerators of continued fraction convergents to sqrt(6).at n=19A041006
• Numerators of continued fraction convergents to sqrt(24).at n=19A041038
• Numerators of continued fraction convergents to sqrt(96).at n=19A041172
• Numerators of continued fraction convergents to sqrt(150).at n=9A041274
• Numerators of continued fraction convergents to sqrt(600).at n=9A042150
• a(n)*a(n+3) - a(n+1)*a(n+2) = 4, given a(0)=a(1)=1, a(2)=5.at n=20A080872
• Numerators of continued fraction convergents to sqrt(3/2).at n=19A142238
• a(n) = cos(2*n*arcsin(sqrt(3))) = (-1)^n*cosh(2*n*arcsinh(sqrt(2))).at n=10A146311
• a(n) = cosh(2 * n * arccosh(n)).at n=5A173129
• Numbers such that floor(a(n)^2 / 6) is a square.at n=31A204518
• a(n) = 512*n^10 - 1280*n^8 + 1120*n^6 - 400*n^4 + 50*n^2 - 1.at n=5A243136