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 | 1 |
| 2 | 11 |
| 3 | 21 |
| 4 | 501 |
| 5 | 1218 |
| 6 | 1859 |
| 7 | 2802 |
| 8 | 6155 |
| 9 | 18669 |
| 10 | 26587 |
| 11 | 52779 |
| 12 | 102113 |
| 13 | 357610 |
| 14 | 650078 |
| 15 | 870815 |
| 16 | 1161760 |
| 17 | 2043984 |
| 18 | 3544750 |
| 19 | 6066082 |
| 20 | 7898238 |
| 21 | 13271830 |
| 22 | 17131481 |
| 23 | 46334860 |
| 24 | 59057152 |
| 25 | 75099068 |
| 26 | 95284646 |
| 27 | 192138168 |
| 28 | 241751422 |
| 29 | 303581873 |
| 30 | 380501078 |
| 31 | 594454124 |
| 32 | 922174780 |
| 33 | 1145660456 |