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 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 26 |
| 5 | 206 |
| 6 | 442 |
| 7 | 1531 |
| 8 | 2661 |
| 9 | 5574 |
| 10 | 8514 |
| 11 | 15614 |
| 12 | 20331 |
| 13 | 34500 |
| 14 | 44814 |
| 15 | 64503 |
| 16 | 83143 |
| 17 | 117759 |
| 18 | 141290 |
| 19 | 193436 |
| 20 | 226722 |
| 21 | 295978 |
| 22 | 351953 |
| 23 | 447208 |
| 24 | 507508 |
| 25 | 637447 |
| 26 | 732322 |
| 27 | 887044 |
| 28 | 1001577 |
| 29 | 1213233 |
| 30 | 1337525 |
| 31 | 1611692 |
| 32 | 1786560 |
| 33 | 2088648 |
| 34 | 2321052 |
| 35 | 2673275 |
| 36 | 2929254 |
| 37 | 3404667 |