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 | 7 |
| 3 | 251 |
| 4 | 683 |
| 5 | 2017 |
| 6 | 18679 |
| 7 | 13499 |
| 8 | 608131 |
| 9 | 97213 |
| 10 | 937127 |
| 11 | 891997 |
| 12 | 531359 |
| 13 | 490283 |
| 14 | 637171 |
| 15 | 892321 |
| 16 | 21954731 |
| 17 | 5995783 |
| 18 | 3440627 |
| 19 | 12024413 |
| 20 | 3697249 |
| 21 | 2674579 |
| 22 | 95270633 |
| 23 | 165066283 |
| 24 | 25091659 |
| 25 | 465512447 |
| 26 | 161732947 |
| 27 | 88360297 |
| 28 | 804346451 |
| 29 | 286775719 |
| 30 | 198215821 |