Triangular numbers that are one-eighth of other triangular numbers; T(t) such that 8*T(t)=T(u) for some u where T(k) is the k-th triangular number.

A336624

Triangular numbers that are one-eighth of other triangular numbers; T(t) such that 8*T(t)=T(u) for some u where T(k) is the k-th triangular number.

Terms

    a(0) =0a(1) =15a(2) =66a(3) =17391a(4) =76245a(5) =20069280a(6) =87986745a(7) =23159931810a(8) =101536627566

External references