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 | 6 |
| 2 | 98 |
| 3 | 450 |
| 4 | 1590 |
| 5 | 3426 |
| 6 | 8546 |
| 7 | 13992 |
| 8 | 26158 |
| 9 | 41748 |
| 10 | 67588 |
| 11 | 90082 |
| 12 | 148792 |
| 13 | 187474 |
| 14 | 260222 |
| 15 | 355100 |
| 16 | 480620 |
| 17 | 569610 |
| 18 | 778354 |
| 19 | 903974 |
| 20 | 1192760 |
| 21 | 1466488 |
| 22 | 1766846 |
| 23 | 1994060 |
| 24 | 2603040 |
| 25 | 2993262 |
| 26 | 3493594 |
| 27 | 4070056 |
| 28 | 4892770 |
| 29 | 5366122 |
| 30 | 6633208 |
| 31 | 7221322 |