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 | 4 |
| 2 | 17 |
| 3 | 55 |
| 4 | 142 |
| 5 | 350 |
| 6 | 727 |
| 7 | 1393 |
| 8 | 2420 |
| 9 | 3976 |
| 10 | 6373 |
| 11 | 9731 |
| 12 | 14458 |
| 13 | 20866 |
| 14 | 29123 |
| 15 | 39589 |
| 16 | 52864 |
| 17 | 69620 |
| 18 | 90097 |
| 19 | 115063 |
| 20 | 145070 |
| 21 | 180406 |
| 22 | 221983 |
| 23 | 270449 |
| 24 | 326836 |
| 25 | 392632 |
| 26 | 468629 |
| 27 | 555235 |
| 28 | 653290 |
| 29 | 763226 |
| 30 | 885931 |
| 31 | 1024765 |
| 32 | 1180760 |
| 33 | 1355524 |
| 34 | 1549609 |