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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 10 |
| 5 | 20 |
| 6 | 52 |
| 7 | 130 |
| 8 | 370 |
| 9 | 1066 |
| 10 | 1090 |
| 11 | 2626 |
| 12 | 4580 |
| 13 | 7540 |
| 14 | 9140 |
| 15 | 21268 |
| 16 | 21682 |
| 17 | 24634 |
| 18 | 26596 |
| 19 | 29380 |
| 20 | 38740 |
| 21 | 40330 |
| 22 | 65026 |
| 23 | 146810 |
| 24 | 152164 |
| 25 | 154180 |
| 26 | 159172 |
| 27 | 211492 |
| 28 | 271426 |
| 29 | 290116 |
| 30 | 330706 |
| 31 | 432730 |
| 32 | 567988 |
| 33 | 575956 |
| 34 | 710788 |
| 35 | 782090 |