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 | 14 |
| 1 | 29 |
| 2 | 826 |
| 3 | 1681 |
| 4 | 47894 |
| 5 | 97469 |
| 6 | 2777026 |
| 7 | 5651521 |
| 8 | 161019614 |
| 9 | 327690749 |
| 10 | 9336360586 |
| 11 | 19000411921 |
| 12 | 541347894374 |
| 13 | 1101696200669 |
| 14 | 31388841513106 |
| 15 | 63879379226881 |
| 16 | 1820011459865774 |
| 17 | 3703902298958429 |
| 18 | 105529275830701786 |
| 19 | 214762453960362001 |
| 20 | 6118877986720837814 |