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 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 13 |
| 6 | 25 |
| 7 | 46 |
| 8 | 86 |
| 9 | 162 |
| 10 | 302 |
| 11 | 565 |
| 12 | 1058 |
| 13 | 1978 |
| 14 | 3700 |
| 15 | 6923 |
| 16 | 12949 |
| 17 | 24223 |
| 18 | 45316 |
| 19 | 84769 |
| 20 | 158575 |
| 21 | 296645 |
| 22 | 554923 |
| 23 | 1038079 |
| 24 | 1941911 |
| 25 | 3632677 |
| 26 | 6795551 |
| 27 | 12712263 |
| 28 | 23780486 |
| 29 | 44485521 |
| 30 | 83217888 |
| 31 | 155673480 |
| 32 | 291214232 |
| 33 | 544766722 |
| 34 | 1019080592 |
| 35 | 1906366927 |