Numbers k such that the k-th triangular number contains only digits {2,3,5}.
A119153
Numbers k such that the k-th triangular number contains only digits {2,3,5}.
Terms
- a(0) =2a(1) =10a(2) =22a(3) =25a(4) =102a(5) =714a(6) =2114a(7) =2170a(8) =2550a(9) =21097a(10) =671302a(11) =258973177a(12) =1023088777a(13) =22460425354a(14) =211297574645
External references
- oeis: A119153