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 | 9 |
| 2 | 59 |
| 3 | 169 |
| 4 | 339 |
| 5 | 641 |
| 6 | 1075 |
| 7 | 1617 |
| 8 | 2381 |
| 9 | 3355 |
| 10 | 4533 |
| 11 | 5939 |
| 12 | 7645 |
| 13 | 9651 |
| 14 | 11933 |
| 15 | 14581 |
| 16 | 17631 |
| 17 | 21053 |
| 18 | 24871 |
| 19 | 29109 |
| 20 | 33863 |
| 21 | 39061 |
| 22 | 44775 |
| 23 | 51023 |
| 24 | 57817 |
| 25 | 65247 |
| 26 | 73193 |
| 27 | 81847 |
| 28 | 91113 |
| 29 | 101063 |
| 30 | 111691 |
| 31 | 123081 |
| 32 | 135155 |
| 33 | 148081 |
| 34 | 161763 |
| 35 | 176249 |
| 36 | 191611 |
| 37 | 207777 |
| 38 | 224861 |
| 39 | 242899 |
| 40 | 261837 |
| 41 | 281627 |
| 42 | 302653 |
| 43 | 324555 |
| 44 | 347405 |
| 45 | 371389 |
| 46 | 396495 |