Numbers k such that the k-th triangular number contains only digits {0,4,6}.
A119074
Numbers k such that the k-th triangular number contains only digits {0,4,6}.
Terms
- a(0) =3a(1) =11a(2) =28a(3) =36a(4) =363a(5) =944a(6) =1095a(7) =9596a(8) =29680a(9) =89895a(10) =3634403a(11) =2979955055a(12) =35888885356
External references
- oeis: A119074