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 | 3 |
| 3 | 9 |
| 4 | 27 |
| 5 | 81 |
| 6 | 243 |
| 7 | 729 |
| 8 | 2187 |
| 9 | 6561 |
| 10 | 6562 |
| 11 | 6563 |
| 12 | 2188 |
| 13 | 6564 |
| 14 | 6565 |
| 15 | 6566 |
| 16 | 2189 |
| 17 | 6567 |
| 18 | 6568 |
| 19 | 6569 |
| 20 | 730 |
| 21 | 2190 |
| 22 | 6570 |
| 23 | 6571 |
| 24 | 6572 |
| 25 | 2191 |
| 26 | 6573 |
| 27 | 6574 |
| 28 | 6575 |
| 29 | 2192 |
| 30 | 6576 |
| 31 | 6577 |
| 32 | 6578 |
| 33 | 731 |
| 34 | 2193 |
| 35 | 6579 |
| 36 | 6580 |
| 37 | 6581 |
| 38 | 2194 |
| 39 | 6582 |
| 40 | 6583 |
| 41 | 6584 |
| 42 | 2195 |
| 43 | 6585 |
| 44 | 6586 |
| 45 | 6587 |
| 46 | 244 |