133333332
domain: N
Appears in sequences
- Number of Fibonacci numbers F(k), k <= 10^n, which end in 3.at n=8A073551
- Numbers k such that the k-th triangular number contains only digits {0,7,8}.at n=14A119094
- Numbers k such that the k-th triangular number contains only digits {1,7,8}.at n=21A119147
- Numbers k such that the k-th triangular number contains only digits {2,7,8}.at n=28A119179
- Numbers k such that the k-th triangular number contains only digits {3,7,8}.at n=13A119201
- Numbers k such that the k-th triangular number contains only digits {4,7,8}.at n=11A119217
- Numbers k such that the k-th triangular number contains only digits {5,7,8}.at n=19A119225
- Numbers k such that the k-th triangular number contains only digits {6,7,8}.at n=14A119231
- Numbers k such that the k-th triangular number contains only digits {7,8,9}.at n=9A119237
- Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 7.at n=30A136970