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 | 15 |
| 2 | 57 |
| 3 | 127 |
| 4 | 225 |
| 5 | 351 |
| 6 | 505 |
| 7 | 687 |
| 8 | 897 |
| 9 | 1135 |
| 10 | 1401 |
| 11 | 1695 |
| 12 | 2017 |
| 13 | 2367 |
| 14 | 2745 |
| 15 | 3151 |
| 16 | 3585 |
| 17 | 4047 |
| 18 | 4537 |
| 19 | 5055 |
| 20 | 5601 |
| 21 | 6175 |
| 22 | 6777 |
| 23 | 7407 |
| 24 | 8065 |
| 25 | 8751 |
| 26 | 9465 |
| 27 | 10207 |
| 28 | 10977 |
| 29 | 11775 |
| 30 | 12601 |
| 31 | 13455 |
| 32 | 14337 |
| 33 | 15247 |
| 34 | 16185 |
| 35 | 17151 |
| 36 | 18145 |
| 37 | 19167 |
| 38 | 20217 |
| 39 | 21295 |
| 40 | 22401 |