Numbers k such that the k-th triangular number contains only digits {3,4,6}.
A119185
Numbers k such that the k-th triangular number contains only digits {3,4,6}.
Terms
- a(0) =2a(1) =3a(2) =8a(3) =11a(4) =36a(5) =816a(6) =85611a(7) =364243a(8) =81775868a(9) =817858956a(10) =832639591a(11) =85374871556a(12) =94304439591
External references
- oeis: A119185