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 | 5 |
| 2 | 17 |
| 3 | 41 |
| 4 | 197 |
| 5 | 281 |
| 6 | 38921 |
| 7 | 121631 |
| 8 | 325019 |
| 9 | 642869 |
| 10 | 681257 |
| 11 | 1005551 |
| 12 | 1086557 |
| 13 | 2327399 |
| 14 | 4975457 |
| 15 | 7584569 |
| 16 | 7819787 |
| 17 | 8130767 |
| 18 | 8522159 |
| 19 | 14848187 |
| 20 | 17769377 |
| 21 | 18615677 |
| 22 | 19949537 |
| 23 | 20144051 |
| 24 | 21171191 |
| 25 | 24845207 |
| 26 | 33669047 |
| 27 | 35166449 |
| 28 | 56039957 |
| 29 | 73479947 |
| 30 | 82366769 |
| 31 | 92731367 |