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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 10 |
| 7 | 19 |
| 8 | 33 |
| 9 | 62 |
| 10 | 112 |
| 11 | 212 |
| 12 | 394 |
| 13 | 751 |
| 14 | 1419 |
| 15 | 2719 |
| 16 | 5193 |
| 17 | 10002 |
| 18 | 19254 |
| 19 | 37258 |
| 20 | 72132 |
| 21 | 140108 |
| 22 | 272368 |
| 23 | 530646 |
| 24 | 1034798 |
| 25 | 2021127 |
| 26 | 3951147 |
| 27 | 7733421 |
| 28 | 15148711 |
| 29 | 29702087 |
| 30 | 58279135 |
| 31 | 114438213 |
| 32 | 224856997 |
| 33 | 442099674 |
| 34 | 869717486 |
| 35 | 1711885120 |
| 36 | 3371215170 |
| 37 | 6642102554 |
| 38 | 13092289634 |
| 39 | 25817134600 |