13333333332
domain: N
Appears in sequences
- Number of Fibonacci numbers F(k), k <= 10^n, which end in 3.at n=10A073551
- Numbers k such that the k-th triangular number contains only digits {0,7,8}.at n=17A119094
- Numbers k such that the k-th triangular number contains only digits {3,7,8}.at n=15A119201
- Numbers k such that the k-th triangular number contains only digits {4,7,8}.at n=14A119217
- Numbers k such that the k-th triangular number contains only digits {5,7,8}.at n=23A119225
- Numbers k such that the k-th triangular number contains only digits {6,7,8}.at n=16A119231
- Numbers k such that the k-th triangular number contains only digits {7,8,9}.at n=11A119237