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 | 3 |
| 3 | 4 |
| 4 | 10 |
| 5 | 13 |
| 6 | 26 |
| 7 | 35 |
| 8 | 66 |
| 9 | 88 |
| 10 | 150 |
| 11 | 202 |
| 12 | 331 |
| 13 | 442 |
| 14 | 688 |
| 15 | 919 |
| 16 | 1394 |
| 17 | 1848 |
| 18 | 2716 |
| 19 | 3590 |
| 20 | 5174 |
| 21 | 6796 |
| 22 | 9589 |
| 23 | 12542 |
| 24 | 17440 |
| 25 | 22680 |
| 26 | 31055 |
| 27 | 40208 |
| 28 | 54420 |
| 29 | 70096 |
| 30 | 93772 |
| 31 | 120256 |
| 32 | 159380 |
| 33 | 203436 |
| 34 | 267142 |
| 35 | 339573 |
| 36 | 442478 |
| 37 | 560050 |
| 38 | 724302 |
| 39 | 913198 |
| 40 | 1173375 |
| 41 | 1473622 |