This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 181 |
| 3 | 401 |
| 4 | 521 |
| 5 | 619 |
| 6 | 709 |
| 7 | 719 |
| 8 | 829 |
| 9 | 911 |
| 10 | 971 |
| 11 | 1511 |
| 12 | 1709 |
| 13 | 1831 |
| 14 | 1879 |
| 15 | 2039 |
| 16 | 2161 |
| 17 | 2179 |
| 18 | 2281 |
| 19 | 2579 |
| 20 | 2861 |
| 21 | 3001 |
| 22 | 3061 |
| 23 | 3221 |
| 24 | 3259 |
| 25 | 3359 |
| 26 | 3499 |
| 27 | 4051 |
| 28 | 4159 |
| 29 | 4409 |
| 30 | 4691 |
| 31 | 4871 |
| 32 | 4931 |
| 33 | 4951 |
| 34 | 5009 |
| 35 | 5171 |
| 36 | 5351 |
| 37 | 5449 |
| 38 | 5569 |
| 39 | 5591 |
| 40 | 5839 |
| 41 | 6131 |
| 42 | 6449 |