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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 4 |
| 7 | 7 |
| 8 | 14 |
| 9 | 28 |
| 10 | 61 |
| 11 | 131 |
| 12 | 297 |
| 13 | 678 |
| 14 | 1592 |
| 15 | 3770 |
| 16 | 9096 |
| 17 | 22121 |
| 18 | 54451 |
| 19 | 135021 |
| 20 | 337651 |
| 21 | 849698 |
| 22 | 2152048 |
| 23 | 5479408 |
| 24 | 14022947 |
| 25 | 36048514 |
| 26 | 93061268 |
| 27 | 241160180 |
| 28 | 627179689 |
| 29 | 1636448181 |
| 30 | 4282964600 |
| 31 | 11241488853 |
| 32 | 29584389474 |