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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 10 |
| 6 | 20 |
| 7 | 38 |
| 8 | 71 |
| 9 | 130 |
| 10 | 235 |
| 11 | 420 |
| 12 | 744 |
| 13 | 1308 |
| 14 | 2285 |
| 15 | 3970 |
| 16 | 6865 |
| 17 | 11822 |
| 18 | 20284 |
| 19 | 34690 |
| 20 | 59155 |
| 21 | 100610 |
| 22 | 170711 |
| 23 | 289032 |
| 24 | 488400 |
| 25 | 823800 |
| 26 | 1387225 |
| 27 | 2332418 |
| 28 | 3916061 |
| 29 | 6566290 |
| 30 | 10996580 |
| 31 | 18394910 |
| 32 | 30737759 |
| 33 | 51310978 |
| 34 | 85573315 |
| 35 | 142587180 |
| 36 | 237387960 |
| 37 | 394905492 |