Triangular numbers composed of digits {1,3,6}.
A119115
Triangular numbers composed of digits {1,3,6}.
Terms
- a(0) =1a(1) =3a(2) =6a(3) =36a(4) =66a(5) =136a(6) =666a(7) =13366a(8) =333336a(9) =6631661361a(10) =113113613161a(11) =663363661366
External references
- oeis: A119115