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 | 10 |
| 2 | 100 |
| 3 | 350 |
| 4 | 1271 |
| 5 | 4047 |
| 6 | 10898 |
| 7 | 30415 |
| 8 | 77326 |
| 9 | 194952 |
| 10 | 486102 |
| 11 | 1177409 |
| 12 | 2870021 |
| 13 | 6897378 |
| 14 | 16540251 |
| 15 | 39654080 |
| 16 | 94561950 |
| 17 | 225894824 |
| 18 | 538481145 |
| 19 | 1283102003 |
| 20 | 3058471278 |
| 21 | 7283180531 |
| 22 | 17351112080 |
| 23 | 41324155722 |
| 24 | 98410550808 |
| 25 | 234389583427 |