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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 9 |
| 7 | 34 |
| 8 | 141 |
| 9 | 198 |
| 10 | 277 |
| 11 | 297 |
| 12 | 375 |
| 13 | 499 |
| 14 | 1420 |
| 15 | 2651 |
| 16 | 2777 |
| 17 | 3554 |
| 18 | 4999 |
| 19 | 19050 |
| 20 | 28660 |
| 21 | 29128 |
| 22 | 49999 |
| 23 | 131061 |
| 24 | 506311 |
| 25 | 3844863 |
| 26 | 3852517 |
| 27 | 4761903 |
| 28 | 4999999 |
| 29 | 22222218 |
| 30 | 37560831 |
| 31 | 133878933 |
| 32 | 506767303 |
| 33 | 872011214 |
| 34 | 1381799253 |
| 35 | 1427435733 |
| 36 | 2777777777 |
| 37 | 3018915632 |
| 38 | 3555555554 |