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) |
|---|---|
| 4 | 1 |
| 5 | 5 |
| 6 | 12 |
| 7 | 21 |
| 8 | 34 |
| 9 | 55 |
| 10 | 88 |
| 11 | 138 |
| 12 | 211 |
| 13 | 314 |
| 14 | 455 |
| 15 | 643 |
| 16 | 888 |
| 17 | 1201 |
| 18 | 1594 |
| 19 | 2080 |
| 20 | 2673 |
| 21 | 3388 |
| 22 | 4241 |
| 23 | 5249 |
| 24 | 6430 |
| 25 | 7803 |
| 26 | 9388 |
| 27 | 11206 |
| 28 | 13279 |
| 29 | 15630 |
| 30 | 18283 |
| 31 | 21263 |
| 32 | 24596 |
| 33 | 28309 |
| 34 | 32430 |
| 35 | 36988 |
| 36 | 42013 |
| 37 | 47536 |
| 38 | 53589 |
| 39 | 60205 |
| 40 | 67418 |
| 41 | 75263 |