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 | 7 |
| 2 | 27 |
| 3 | 105 |
| 4 | 310 |
| 5 | 806 |
| 6 | 1970 |
| 7 | 4234 |
| 8 | 8755 |
| 9 | 16652 |
| 10 | 30224 |
| 11 | 52466 |
| 12 | 85594 |
| 13 | 137723 |
| 14 | 206033 |
| 15 | 309999 |
| 16 | 430890 |
| 17 | 610219 |
| 18 | 795737 |
| 19 | 1066153 |
| 20 | 1311798 |
| 21 | 1671253 |
| 22 | 1946718 |
| 23 | 2369655 |
| 24 | 2615436 |
| 25 | 3057147 |
| 26 | 3194751 |
| 27 | 3603847 |
| 28 | 3556844 |
| 29 | 3892590 |
| 30 | 3614528 |