Numbers k such that the k-th triangular number contains only digits {2,4,6}.
A119161
Numbers k such that the k-th triangular number contains only digits {2,4,6}.
Terms
- a(0) =3a(1) =11a(2) =36a(3) =923a(4) =23076a(5) =211963a(6) =9656548a(7) =35906663076
External references
- oeis: A119161