Triangular numbers composed of digits {5,6,9}.
A119222
Triangular numbers composed of digits {5,6,9}.
Terms
- a(0) =6a(1) =55a(2) =66a(3) =595a(4) =666a(5) =5565a(6) =5995a(7) =6555a(8) =5656566a(9) =95696695a(10) =95969966995a(11) =956996695656
External references
- oeis: A119222