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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 127 |
| 5 | 227 |
| 6 | 647 |
| 7 | 1351 |
| 8 | 1907 |
| 9 | 3239 |
| 10 | 4607 |
| 11 | 5219 |
| 12 | 5975 |
| 13 | 11447 |
| 14 | 13159 |
| 15 | 13919 |
| 16 | 21527 |
| 17 | 22049 |
| 18 | 23759 |
| 19 | 23939 |
| 20 | 24839 |
| 21 | 30959 |
| 22 | 31283 |
| 23 | 31583 |
| 24 | 31967 |
| 25 | 32767 |
| 26 | 37223 |
| 27 | 46091 |
| 28 | 46511 |
| 29 | 47267 |
| 30 | 60479 |
| 31 | 65663 |
| 32 | 66527 |
| 33 | 78539 |
| 34 | 78599 |
| 35 | 81727 |
| 36 | 82799 |
| 37 | 84311 |
| 38 | 98405 |
| 39 | 102671 |
| 40 | 103967 |