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 | 31 |
| 2 | 211 |
| 3 | 1381 |
| 4 | 3271 |
| 5 | 4999 |
| 6 | 6421 |
| 7 | 8059 |
| 8 | 9769 |
| 9 | 10399 |
| 10 | 11551 |
| 11 | 16249 |
| 12 | 20479 |
| 13 | 23269 |
| 14 | 23629 |
| 15 | 27031 |
| 16 | 28309 |
| 17 | 33349 |
| 18 | 35491 |
| 19 | 39019 |
| 20 | 54139 |
| 21 | 63949 |
| 22 | 70879 |
| 23 | 106591 |
| 24 | 109579 |
| 25 | 116131 |
| 26 | 127219 |
| 27 | 130729 |
| 28 | 141439 |
| 29 | 142969 |
| 30 | 150151 |
| 31 | 151771 |
| 32 | 153589 |
| 33 | 163741 |
| 34 | 167449 |
| 35 | 169591 |
| 36 | 195511 |
| 37 | 205339 |
| 38 | 208489 |
| 39 | 210361 |
| 40 | 216679 |
| 41 | 222601 |
| 42 | 224149 |