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 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 8 |
| 7 | 11 |
| 8 | 18 |
| 9 | 26 |
| 10 | 39 |
| 11 | 62 |
| 12 | 103 |
| 13 | 170 |
| 14 | 281 |
| 15 | 474 |
| 16 | 834 |
| 17 | 1464 |
| 18 | 2555 |
| 19 | 4493 |
| 20 | 8051 |
| 21 | 14499 |
| 22 | 26375 |
| 23 | 48024 |
| 24 | 88175 |
| 25 | 161833 |
| 26 | 297544 |
| 27 | 549330 |
| 28 | 1018008 |
| 29 | 1893255 |
| 30 | 3527324 |
| 31 | 6588118 |
| 32 | 12334363 |
| 33 | 23140567 |
| 34 | 43497488 |
| 35 | 81930886 |
| 36 | 154587025 |
| 37 | 292149120 |
| 38 | 552997218 |
| 39 | 1048340476 |
| 40 | 1990145943 |
| 41 | 3783145017 |