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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 20 |
| 5 | 35 |
| 6 | 62 |
| 7 | 102 |
| 8 | 167 |
| 9 | 262 |
| 10 | 407 |
| 11 | 614 |
| 12 | 919 |
| 13 | 1345 |
| 14 | 1952 |
| 15 | 2788 |
| 16 | 3950 |
| 17 | 5524 |
| 18 | 7671 |
| 19 | 10540 |
| 20 | 14388 |
| 21 | 19470 |
| 22 | 26190 |
| 23 | 34968 |
| 24 | 46439 |
| 25 | 61275 |
| 26 | 80455 |
| 27 | 105047 |
| 28 | 136541 |
| 29 | 176593 |
| 30 | 227460 |
| 31 | 291673 |
| 32 | 372605 |
| 33 | 474085 |
| 34 | 601105 |
| 35 | 759380 |
| 36 | 956249 |
| 37 | 1200143 |
| 38 | 1501749 |
| 39 | 1873407 |