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 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 22 |
| 6 | 42 |
| 7 | 66 |
| 8 | 112 |
| 9 | 172 |
| 10 | 270 |
| 11 | 397 |
| 12 | 602 |
| 13 | 858 |
| 14 | 1245 |
| 15 | 1748 |
| 16 | 2464 |
| 17 | 3381 |
| 18 | 4671 |
| 19 | 6302 |
| 20 | 8537 |
| 21 | 11372 |
| 22 | 15147 |
| 23 | 19914 |
| 24 | 26201 |
| 25 | 34057 |
| 26 | 44250 |
| 27 | 56986 |
| 28 | 73277 |
| 29 | 93497 |
| 30 | 119161 |
| 31 | 150809 |
| 32 | 190590 |
| 33 | 239496 |
| 34 | 300388 |
| 35 | 374912 |
| 36 | 467135 |
| 37 | 579394 |
| 38 | 717384 |
| 39 | 884813 |