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 | 1 |
| 1 | 10 |
| 2 | 54 |
| 3 | 211 |
| 4 | 669 |
| 5 | 1827 |
| 6 | 4456 |
| 7 | 9942 |
| 8 | 20638 |
| 9 | 40357 |
| 10 | 75043 |
| 11 | 133663 |
| 12 | 229368 |
| 13 | 380976 |
| 14 | 614836 |
| 15 | 967138 |
| 16 | 1486741 |
| 17 | 2238597 |
| 18 | 3307855 |
| 19 | 4804735 |
| 20 | 6870266 |
| 21 | 9682988 |
| 22 | 13466724 |
| 23 | 18499534 |
| 24 | 25123969 |
| 25 | 33758748 |
| 26 | 44911987 |
| 27 | 59196114 |
| 28 | 77344609 |
| 29 | 100230715 |
| 30 | 128888272 |
| 31 | 164534832 |
| 32 | 208597219 |
| 33 | 262739703 |
| 34 | 328894963 |
| 35 | 409298018 |
| 36 | 506523312 |
| 37 | 623525146 |
| 38 | 763681655 |