Triangular numbers composed of digits {2,5,6}.
A119164
Triangular numbers composed of digits {2,5,6}.
Terms
- a(0) =6a(1) =55a(2) =66a(3) =666a(4) =2556a(5) =5565a(6) =6555a(7) =26565a(8) =255255a(9) =2265256a(10) =5656566a(11) =55656525a(12) =525252666a(13) =2665266555
External references
- oeis: A119164