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 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 10 |
| 6 | 40 |
| 7 | 164 |
| 8 | 568 |
| 9 | 1614 |
| 10 | 3916 |
| 11 | 8492 |
| 12 | 16852 |
| 13 | 31100 |
| 14 | 54068 |
| 15 | 89428 |
| 16 | 141812 |
| 17 | 216932 |
| 18 | 321700 |
| 19 | 464348 |
| 20 | 654548 |
| 21 | 903532 |
| 22 | 1224212 |
| 23 | 1631300 |
| 24 | 2141428 |
| 25 | 2773268 |
| 26 | 3547652 |
| 27 | 4487692 |
| 28 | 5618900 |
| 29 | 6969308 |
| 30 | 8569588 |
| 31 | 10453172 |
| 32 | 12656372 |
| 33 | 15218500 |
| 34 | 18181988 |
| 35 | 21592508 |