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 | 5 |
| 2 | 20 |
| 3 | 70 |
| 4 | 165 |
| 5 | 357 |
| 6 | 688 |
| 7 | 1154 |
| 8 | 1867 |
| 9 | 2907 |
| 10 | 4272 |
| 11 | 6070 |
| 12 | 8357 |
| 13 | 11307 |
| 14 | 14998 |
| 15 | 19470 |
| 16 | 24809 |
| 17 | 31211 |
| 18 | 38928 |
| 19 | 47816 |
| 20 | 58201 |
| 21 | 70361 |
| 22 | 83962 |
| 23 | 99648 |
| 24 | 117519 |
| 25 | 137521 |
| 26 | 160270 |
| 27 | 185528 |
| 28 | 213615 |
| 29 | 244649 |
| 30 | 279370 |
| 31 | 317006 |
| 32 | 358809 |
| 33 | 404823 |
| 34 | 454838 |
| 35 | 509486 |
| 36 | 568493 |