Problem #178

How many points
Public 2y:4м 12xp Math 23.5%

For real numbers a, k > 0.0;
let F(a,k) denote the number of lattice points
inside the OAB tringle with the following vertices:
O(0.0,0.0)
A(a,0.0)
B(0.0,k*a)

For example:
F(5.0,5.0)=81
For O(0.0,0.0), A(5.0,0.0), B(0.0,25.0)

What is F(10^16+1,2/(sqrt(5)+1))?

[My timing: 1s]



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