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 | 3 |
| 2 | 19 |
| 3 | 43 |
| 4 | 79 |
| 5 | 127 |
| 6 | 199 |
| 7 | 283 |
| 8 | 379 |
| 9 | 499 |
| 10 | 643 |
| 11 | 809 |
| 12 | 983 |
| 13 | 1171 |
| 14 | 1381 |
| 15 | 1609 |
| 16 | 1861 |
| 17 | 2137 |
| 18 | 2437 |
| 19 | 2749 |
| 20 | 3109 |
| 21 | 3457 |
| 22 | 3833 |
| 23 | 4243 |
| 24 | 4663 |
| 25 | 5119 |
| 26 | 5623 |
| 27 | 6079 |
| 28 | 6599 |
| 29 | 7151 |
| 30 | 7699 |
| 31 | 8273 |
| 32 | 8893 |
| 33 | 9521 |
| 34 | 10211 |
| 35 | 10889 |
| 36 | 11597 |
| 37 | 12343 |
| 38 | 13099 |
| 39 | 13903 |
| 40 | 14713 |
| 41 | 15559 |
| 42 | 16411 |
| 43 | 17291 |