Triangular numbers whose representation is made of nontrivial runs of identical digits.
A116055
Triangular numbers whose representation is made of nontrivial runs of identical digits.
Terms
- a(0) =55a(1) =66a(2) =666a(3) =2211a(4) =222111a(5) =339900a(6) =1188111a(7) =22221111a(8) =88000011a(9) =111221155a(10) =553330011a(11) =2200066611a(12) =2222211111a(13) =2233558866a(14) =55666666611a(15) =77771144466a(16) =222222111111a(17) =880022001111a(18) =888000000111
External references
- oeis: A116055