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 | 128 |
| 3 | 2186 |
| 4 | 16384 |
| 5 | 78126 |
| 6 | 279808 |
| 7 | 823542 |
| 8 | 2097152 |
| 9 | 4780783 |
| 10 | 10000128 |
| 11 | 19487170 |
| 12 | 35815424 |
| 13 | 62748518 |
| 14 | 105413376 |
| 15 | 170783436 |
| 16 | 268435456 |
| 17 | 410338674 |
| 18 | 611940224 |
| 19 | 893871738 |
| 20 | 1280016384 |
| 21 | 1800262812 |
| 22 | 2494357760 |
| 23 | 3404825446 |
| 24 | 4584374272 |
| 25 | 6103593751 |