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 | 7 |
| 3 | 13 |
| 4 | 49 |
| 5 | 91 |
| 6 | 169 |
| 7 | 343 |
| 8 | 637 |
| 9 | 1183 |
| 10 | 2197 |
| 11 | 2401 |
| 12 | 4459 |
| 13 | 8281 |
| 14 | 15379 |
| 15 | 16807 |
| 16 | 28561 |
| 17 | 31213 |
| 18 | 57967 |
| 19 | 107653 |
| 20 | 117649 |
| 21 | 199927 |
| 22 | 218491 |
| 23 | 371293 |
| 24 | 405769 |
| 25 | 753571 |
| 26 | 823543 |
| 27 | 1399489 |
| 28 | 1529437 |
| 29 | 2599051 |
| 30 | 2840383 |
| 31 | 4826809 |
| 32 | 5274997 |
| 33 | 5764801 |
| 34 | 9796423 |
| 35 | 10706059 |
| 36 | 18193357 |
| 37 | 19882681 |