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 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 0 |
| 7 | 1 |
| 8 | 4 |
| 9 | 2 |
| 10 | 3 |
| 11 | 9 |
| 12 | 6 |
| 13 | 11 |
| 14 | 19 |
| 15 | 19 |
| 16 | 27 |
| 17 | 44 |
| 18 | 49 |
| 19 | 68 |
| 20 | 98 |
| 21 | 118 |
| 22 | 157 |
| 23 | 220 |
| 24 | 268 |
| 25 | 354 |
| 26 | 473 |
| 27 | 591 |
| 28 | 765 |
| 29 | 1003 |
| 30 | 1254 |
| 31 | 1609 |
| 32 | 2071 |
| 33 | 2597 |
| 34 | 3293 |
| 35 | 4192 |
| 36 | 5236 |
| 37 | 6594 |
| 38 | 8308 |
| 39 | 10345 |
| 40 | 12926 |
| 41 | 16163 |
| 42 | 20031 |
| 43 | 24886 |
| 44 | 30890 |
| 45 | 38123 |
| 46 | 47081 |
| 47 | 58102 |
| 48 | 71381 |
| 49 | 87704 |
| 50 | 107643 |