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 | 1 |
| 2 | 5 |
| 3 | 19 |
| 4 | 47 |
| 5 | 115 |
| 6 | 183 |
| 7 | 369 |
| 8 | 585 |
| 9 | 927 |
| 10 | 1271 |
| 11 | 2021 |
| 12 | 2557 |
| 13 | 3817 |
| 14 | 4813 |
| 15 | 6101 |
| 16 | 7749 |
| 17 | 10581 |
| 18 | 12381 |
| 19 | 16395 |
| 20 | 19147 |
| 21 | 22855 |
| 22 | 26795 |
| 23 | 33901 |
| 24 | 38141 |
| 25 | 46081 |
| 26 | 52729 |
| 27 | 61711 |
| 28 | 69487 |
| 29 | 83851 |
| 30 | 90731 |
| 31 | 108341 |
| 32 | 121749 |
| 33 | 136929 |
| 34 | 152065 |
| 35 | 171097 |
| 36 | 185257 |
| 37 | 215101 |
| 38 | 236377 |
| 39 | 261553 |
| 40 | 283153 |
| 41 | 323993 |