a(n) = 3*T(A285984(n)), where T(m) is the m-th triangular number A000217(m).
A286035
a(n) = 3*T(A285984(n)), where T(m) is the m-th triangular number A000217(m).
Terms
- a(0) =0a(1) =18315a(2) =210375a(3) =17232775560a(4) =197941645440
External references
- oeis: A286035