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 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 10 |
| 6 | 91 |
| 7 | 136 |
| 8 | 300 |
| 9 | 528 |
| 10 | 820 |
| 11 | 4560 |
| 12 | 7381 |
| 13 | 11476 |
| 14 | 20910 |
| 15 | 42486 |
| 16 | 66430 |
| 17 | 552826 |
| 18 | 581581 |
| 19 | 597871 |
| 20 | 1664400 |
| 21 | 2001000 |
| 22 | 3420420 |
| 23 | 3444000 |
| 24 | 5070520 |
| 25 | 5380840 |
| 26 | 48427561 |
| 27 | 75995956 |
| 28 | 132494781 |
| 29 | 134553810 |
| 30 | 137158203 |
| 31 | 159213090 |
| 32 | 290585778 |
| 33 | 434520460 |
| 34 | 435848050 |
| 35 | 669615310 |