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 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 11 |
| 7 | 18 |
| 8 | 23 |
| 9 | 64 |
| 10 | 105 |
| 11 | 134 |
| 12 | 373 |
| 13 | 612 |
| 14 | 781 |
| 15 | 2174 |
| 16 | 3567 |
| 17 | 4552 |
| 18 | 12671 |
| 19 | 20790 |
| 20 | 26531 |
| 21 | 73852 |
| 22 | 121173 |
| 23 | 154634 |
| 24 | 430441 |
| 25 | 706248 |
| 26 | 901273 |
| 27 | 2508794 |
| 28 | 4116315 |
| 29 | 5253004 |
| 30 | 14622323 |
| 31 | 23991642 |
| 32 | 30616751 |
| 33 | 85225144 |
| 34 | 139833537 |
| 35 | 178447502 |
| 36 | 496728541 |
| 37 | 815009580 |
| 38 | 1040068261 |
| 39 | 2895146102 |
| 40 | 4750223943 |
| 41 | 6061962064 |
| 42 | 16874148071 |
| 43 | 27686334078 |
| 44 | 35331704123 |