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 | 3 |
| 2 | 6 |
| 3 | 10 |
| 4 | 16 |
| 5 | 26 |
| 6 | 42 |
| 7 | 67 |
| 8 | 106 |
| 9 | 167 |
| 10 | 264 |
| 11 | 418 |
| 12 | 662 |
| 13 | 1048 |
| 14 | 1658 |
| 15 | 2623 |
| 16 | 4150 |
| 17 | 6567 |
| 18 | 10392 |
| 19 | 16444 |
| 20 | 26020 |
| 21 | 41172 |
| 22 | 65148 |
| 23 | 103087 |
| 24 | 163120 |
| 25 | 258113 |
| 26 | 408424 |
| 27 | 646268 |
| 28 | 1022620 |
| 29 | 1618140 |
| 30 | 2560460 |
| 31 | 4051537 |
| 32 | 6410938 |
| 33 | 10144329 |
| 34 | 16051850 |
| 35 | 25399600 |
| 36 | 40190986 |
| 37 | 63596094 |
| 38 | 100631100 |
| 39 | 159233337 |
| 40 | 251962422 |
| 41 | 398692029 |
| 42 | 630869210 |