Triangular numbers composed of digits {3,6,7}.

A119194

Triangular numbers composed of digits {3,6,7}.

Terms

    a(0) =3a(1) =6a(2) =36a(3) =66a(4) =666a(5) =76636a(6) =333336a(7) =36666766a(8) =767673336

External references