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) |
|---|---|
| 0 | 1 |
| 1 | 13 |
| 2 | 73 |
| 3 | 233 |
| 4 | 485 |
| 5 | 797 |
| 6 | 1341 |
| 7 | 2301 |
| 8 | 3321 |
| 9 | 4197 |
| 10 | 5757 |
| 11 | 8157 |
| 12 | 10237 |
| 13 | 12277 |
| 14 | 15541 |
| 15 | 19701 |
| 16 | 23793 |
| 17 | 27273 |
| 18 | 31653 |
| 19 | 38853 |
| 20 | 45405 |
| 21 | 50013 |
| 22 | 58173 |
| 23 | 68733 |
| 24 | 76957 |
| 25 | 84769 |
| 26 | 94969 |
| 27 | 108089 |
| 28 | 120569 |
| 29 | 130673 |
| 30 | 144817 |
| 31 | 164017 |
| 32 | 180397 |
| 33 | 191917 |
| 34 | 209317 |
| 35 | 234277 |
| 36 | 252673 |
| 37 | 269113 |
| 38 | 293593 |