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 | 53 |
| 2 | 5347 |
| 3 | 5953 |
| 4 | 6761 |
| 5 | 137131 |
| 6 | 179173 |
| 7 | 211199 |
| 8 | 223211 |
| 9 | 239233 |
| 10 | 263257 |
| 11 | 359353 |
| 12 | 541523 |
| 13 | 593587 |
| 14 | 613607 |
| 15 | 631619 |
| 16 | 653647 |
| 17 | 659653 |
| 18 | 757751 |
| 19 | 809797 |
| 20 | 977971 |
| 21 | 997991 |
| 22 | 1009997 |
| 23 | 11091103 |
| 24 | 11291123 |
| 25 | 12371231 |
| 26 | 13991381 |
| 27 | 15591553 |
| 28 | 17831777 |
| 29 | 19311913 |
| 30 | 19791973 |
| 31 | 19931987 |
| 32 | 23092297 |