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 | 3 |
| 2 | 5 |
| 3 | 10 |
| 4 | 17 |
| 5 | 26 |
| 6 | 65 |
| 7 | 290 |
| 8 | 730 |
| 9 | 1682 |
| 10 | 2402 |
| 11 | 3482 |
| 12 | 4097 |
| 13 | 5042 |
| 14 | 7922 |
| 15 | 10202 |
| 16 | 15626 |
| 17 | 17162 |
| 18 | 27890 |
| 19 | 28562 |
| 20 | 29930 |
| 21 | 65537 |
| 22 | 83522 |
| 23 | 85850 |
| 24 | 146690 |
| 25 | 262145 |
| 26 | 279842 |
| 27 | 458330 |
| 28 | 491402 |
| 29 | 531442 |
| 30 | 552050 |
| 31 | 579122 |
| 32 | 597530 |
| 33 | 683930 |
| 34 | 703922 |
| 35 | 707282 |
| 36 | 734450 |
| 37 | 829922 |
| 38 | 1190282 |
| 39 | 1203410 |