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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 9 |
| 5 | 17 |
| 6 | 37 |
| 7 | 88 |
| 8 | 185 |
| 9 | 387 |
| 10 | 783 |
| 11 | 1611 |
| 12 | 3354 |
| 13 | 6959 |
| 14 | 14469 |
| 15 | 29983 |
| 16 | 62386 |
| 17 | 127992 |
| 18 | 256022 |
| 19 | 513110 |
| 20 | 1029534 |
| 21 | 2069248 |
| 22 | 4161860 |
| 23 | 8380507 |
| 24 | 16880924 |
| 25 | 34031112 |
| 26 | 68622510 |
| 27 | 138439065 |
| 28 | 279365954 |
| 29 | 563874347 |
| 30 | 1138322112 |
| 31 | 2298288343 |
| 32 | 4640647720 |