Binomial coefficients binomial(n,k) = uv such that n>=2k and u > v, where gpf(u) < k, gpf(v) >= k (gpf(n)= is the greatest prime factor of n).
A286980
Binomial coefficients binomial(n,k) = uv such that n>=2k and u > v, where gpf(u) < k, gpf(v) >= k (gpf(n)= is the greatest prime factor of n).
Terms
- a(0) =56a(1) =126a(2) =252a(3) =792a(4) =116280a(5) =203490a(6) =2035800a(7) =573166440a(8) =818809200a(9) =2310789600a(10) =8597496600
External references
- oeis: A286980