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 | 14 |
| 2 | 40 |
| 3 | 92 |
| 4 | 244 |
| 5 | 644 |
| 6 | 1750 |
| 7 | 4802 |
| 8 | 13324 |
| 9 | 37244 |
| 10 | 104770 |
| 11 | 296222 |
| 12 | 841114 |
| 13 | 2396954 |
| 14 | 6851920 |
| 15 | 19639652 |
| 16 | 56426044 |
| 17 | 162453884 |
| 18 | 468581890 |
| 19 | 1353822062 |
| 20 | 3917298334 |
| 21 | 11350084334 |
| 22 | 32926503100 |
| 23 | 95626832432 |
| 24 | 278010277474 |
| 25 | 809008239794 |
| 26 | 2356265478100 |
| 27 | 6868253600552 |