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 | 2 |
| 4 | 6 |
| 5 | 17 |
| 6 | 43 |
| 7 | 100 |
| 8 | 220 |
| 9 | 467 |
| 10 | 969 |
| 11 | 1982 |
| 12 | 4018 |
| 13 | 8101 |
| 14 | 16279 |
| 15 | 32648 |
| 16 | 65400 |
| 17 | 130919 |
| 18 | 261973 |
| 19 | 524098 |
| 20 | 1048366 |
| 21 | 2096921 |
| 22 | 4194051 |
| 23 | 8388332 |
| 24 | 16776916 |
| 25 | 33554107 |
| 26 | 67108513 |
| 27 | 134217350 |
| 28 | 268435050 |
| 29 | 536870477 |
| 30 | 1073741359 |
| 31 | 2147483152 |
| 32 | 4294966768 |
| 33 | 8589934031 |
| 34 | 17179868589 |