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) |
|---|---|
| 0 | 7 |
| 1 | 9 |
| 2 | 12 |
| 3 | 16 |
| 4 | 22 |
| 5 | 31 |
| 6 | 44 |
| 7 | 63 |
| 8 | 91 |
| 9 | 132 |
| 10 | 192 |
| 11 | 280 |
| 12 | 409 |
| 13 | 598 |
| 14 | 875 |
| 15 | 1281 |
| 16 | 1876 |
| 17 | 2748 |
| 18 | 4026 |
| 19 | 5899 |
| 20 | 8644 |
| 21 | 12667 |
| 22 | 18563 |
| 23 | 27204 |
| 24 | 39868 |
| 25 | 58428 |
| 26 | 85629 |
| 27 | 125494 |
| 28 | 183919 |
| 29 | 269545 |
| 30 | 395036 |
| 31 | 578952 |
| 32 | 848494 |
| 33 | 1243527 |
| 34 | 1822476 |
| 35 | 2670967 |
| 36 | 3914491 |
| 37 | 5736964 |
| 38 | 8407928 |
| 39 | 12322416 |
| 40 | 18059377 |