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 | 6 |
| 4 | 11 |
| 5 | 27 |
| 6 | 60 |
| 7 | 132 |
| 8 | 301 |
| 9 | 669 |
| 10 | 1502 |
| 11 | 3370 |
| 12 | 7543 |
| 13 | 16919 |
| 14 | 37912 |
| 15 | 84968 |
| 16 | 190457 |
| 17 | 426841 |
| 18 | 956698 |
| 19 | 2144238 |
| 20 | 4805827 |
| 21 | 10771315 |
| 22 | 24141588 |
| 23 | 54108332 |
| 24 | 121272549 |
| 25 | 271806901 |
| 26 | 609198390 |
| 27 | 1365390546 |
| 28 | 3060236911 |
| 29 | 6858880431 |
| 30 | 15372743856 |
| 31 | 34454786384 |
| 32 | 77223188593 |
| 33 | 173079605553 |
| 34 | 387921692082 |
| 35 | 869445237846 |