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 | 7 |
| 2 | 18 |
| 3 | 55 |
| 4 | 112 |
| 5 | 286 |
| 6 | 403 |
| 7 | 697 |
| 8 | 874 |
| 9 | 1288 |
| 10 | 2059 |
| 11 | 2356 |
| 12 | 3367 |
| 13 | 4141 |
| 14 | 4558 |
| 15 | 5452 |
| 16 | 6943 |
| 17 | 8614 |
| 18 | 9211 |
| 19 | 11122 |
| 20 | 12496 |
| 21 | 13213 |
| 22 | 15484 |
| 23 | 17098 |
| 24 | 19669 |
| 25 | 23377 |
| 26 | 25351 |
| 27 | 26368 |
| 28 | 28462 |
| 29 | 29539 |
| 30 | 31753 |
| 31 | 40132 |
| 32 | 42706 |
| 33 | 46717 |
| 34 | 48094 |
| 35 | 55279 |
| 36 | 56776 |
| 37 | 61387 |
| 38 | 66178 |
| 39 | 69472 |
| 40 | 74563 |
| 41 | 79834 |