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) |
|---|---|
| 14 | 1 |
| 15 | 13 |
| 16 | 69 |
| 17 | 276 |
| 18 | 868 |
| 19 | 2380 |
| 20 | 5822 |
| 21 | 13110 |
| 22 | 27509 |
| 23 | 54583 |
| 24 | 103126 |
| 25 | 187035 |
| 26 | 327121 |
| 27 | 554450 |
| 28 | 913611 |
| 29 | 1468364 |
| 30 | 2307096 |
| 31 | 3551916 |
| 32 | 5367406 |
| 33 | 7974550 |
| 34 | 11664238 |
| 35 | 16817964 |
| 36 | 23927818 |
| 37 | 33626390 |
| 38 | 46715627 |
| 39 | 64208789 |
| 40 | 87371118 |
| 41 | 117777552 |