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) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 14 |
| 6 | 29 |
| 7 | 52 |
| 8 | 96 |
| 9 | 160 |
| 10 | 277 |
| 11 | 450 |
| 12 | 712 |
| 13 | 1086 |
| 14 | 1657 |
| 15 | 2448 |
| 16 | 3636 |
| 17 | 5280 |
| 18 | 7635 |
| 19 | 10840 |
| 20 | 15392 |
| 21 | 21372 |
| 22 | 29655 |
| 23 | 40580 |
| 24 | 55282 |
| 25 | 74620 |
| 26 | 100651 |
| 27 | 134232 |
| 28 | 178922 |
| 29 | 236488 |
| 30 | 312019 |
| 31 | 408550 |
| 32 | 534288 |
| 33 | 692978 |
| 34 | 897931 |
| 35 | 1156256 |
| 36 | 1485650 |
| 37 | 1897704 |
| 38 | 2421635 |
| 39 | 3071608 |
| 40 | 3894042 |