Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5*T(m) = 4*T(k) for some k.
A201003
Triangular numbers, T(m), that are four-fifths of another triangular number: T(m) such that 5*T(m) = 4*T(k) for some k.
Terms
- a(0) =0a(1) =36a(2) =11628a(3) =3744216a(4) =1205625960a(5) =388207814940
External references
- oeis: A201003