2921503573

Appears in sequences

• Denominators of continued fraction convergents to sqrt(10).at n=13A005668
• Denominators of continued fraction convergents to sqrt(40).at n=12A041067
• Denominators of continued fraction convergents to sqrt(90).at n=12A041161
• Denominators of continued fraction convergents to sqrt(160).at n=24A041295
• Denominators of continued fraction convergents to sqrt(360).at n=12A041683
• Pell equation solutions (3*b(n))^2 - 10*a(n)^2 = -1 with b(n) = A097314(n), n >= 0.at n=6A097315
• Array read by antidiagonals of a(n) = a(n-1)*k-((k-1)/(k^n)) where a(0)=1 and k=(sqrt(x^2+1)+x)^2 for integers x>=1.at n=38A188647
• Hypotenuses of primitive Pythagorean triples in A195556 and A195557.at n=18A195558