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 | 3 |
| 2 | 17 |
| 3 | 55 |
| 4 | 129 |
| 5 | 251 |
| 6 | 433 |
| 7 | 687 |
| 8 | 1025 |
| 9 | 1459 |
| 10 | 2001 |
| 11 | 2663 |
| 12 | 3457 |
| 13 | 4395 |
| 14 | 5489 |
| 15 | 6751 |
| 16 | 8193 |
| 17 | 9827 |
| 18 | 11665 |
| 19 | 13719 |
| 20 | 16001 |
| 21 | 18523 |
| 22 | 21297 |
| 23 | 24335 |
| 24 | 27649 |
| 25 | 31251 |
| 26 | 35153 |
| 27 | 39367 |
| 28 | 43905 |
| 29 | 48779 |
| 30 | 54001 |
| 31 | 59583 |
| 32 | 65537 |
| 33 | 71875 |
| 34 | 78609 |
| 35 | 85751 |
| 36 | 93313 |
| 37 | 101307 |
| 38 | 109745 |
| 39 | 118639 |
| 40 | 128001 |