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 | 23 |
| 2 | 53 |
| 3 | 89 |
| 4 | 263 |
| 5 | 599 |
| 6 | 1283 |
| 7 | 1979 |
| 8 | 3449 |
| 9 | 5399 |
| 10 | 5639 |
| 11 | 11813 |
| 12 | 14543 |
| 13 | 41213 |
| 14 | 42443 |
| 15 | 44249 |
| 16 | 47129 |
| 17 | 55799 |
| 18 | 57773 |
| 19 | 65699 |
| 20 | 74699 |
| 21 | 75983 |
| 22 | 79613 |
| 23 | 84299 |
| 24 | 87539 |
| 25 | 88643 |
| 26 | 88793 |
| 27 | 88799 |
| 28 | 113153 |
| 29 | 115763 |
| 30 | 126473 |
| 31 | 143813 |
| 32 | 148913 |
| 33 | 150203 |
| 34 | 160073 |
| 35 | 163973 |
| 36 | 167099 |
| 37 | 176489 |
| 38 | 178799 |
| 39 | 178889 |
| 40 | 209249 |