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 | 12 |
| 2 | 376 |
| 3 | 2878 |
| 4 | 12570 |
| 5 | 40288 |
| 6 | 105892 |
| 7 | 242226 |
| 8 | 499798 |
| 9 | 952180 |
| 10 | 1702128 |
| 11 | 2888422 |
| 12 | 4693426 |
| 13 | 7351368 |
| 14 | 11157340 |
| 15 | 16477018 |
| 16 | 23757102 |
| 17 | 33536476 |
| 18 | 46458088 |
| 19 | 63281550 |
| 20 | 84896458 |
| 21 | 112336432 |
| 22 | 146793876 |
| 23 | 189635458 |
| 24 | 242418310 |
| 25 | 306906948 |
| 26 | 385090912 |