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 | 2 |
| 2 | 4 |
| 3 | 9 |
| 4 | 20 |
| 5 | 117 |
| 6 | 88 |
| 7 | 64 |
| 8 | 43 |
| 9 | 326 |
| 10 | 1842 |
| 11 | 775 |
| 12 | 3894 |
| 13 | 14401 |
| 14 | 9204 |
| 15 | 24092 |
| 16 | 14837 |
| 17 | 57481 |
| 18 | 90901 |
| 19 | 242495 |
| 20 | 260680 |
| 21 | 61005 |
| 22 | 508929 |
| 23 | 1084588 |
| 24 | 436307 |
| 25 | 1124509 |
| 26 | 1824015 |
| 27 | 2969632 |
| 28 | 2052357 |
| 29 | 4006960 |
| 30 | 5241202 |
| 31 | 10253662 |
| 32 | 30802809 |
| 33 | 17480124 |
| 34 | 73915355 |
| 35 | 98931475 |
| 36 | 42664033 |