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 | 2 |
| 3 | 12 |
| 4 | 60 |
| 5 | 376 |
| 6 | 642 |
| 7 | 1550 |
| 8 | 2238 |
| 9 | 4118 |
| 10 | 7770 |
| 11 | 9534 |
| 12 | 15846 |
| 13 | 21966 |
| 14 | 26490 |
| 15 | 35750 |
| 16 | 46934 |
| 17 | 63204 |
| 18 | 73164 |
| 19 | 94248 |
| 20 | 112812 |
| 21 | 128922 |
| 22 | 161128 |
| 23 | 185576 |
| 24 | 225062 |
| 25 | 278260 |
| 26 | 315108 |
| 27 | 347596 |
| 28 | 393898 |
| 29 | 426998 |
| 30 | 478078 |
| 31 | 614064 |
| 32 | 682998 |
| 33 | 769800 |
| 34 | 827466 |
| 35 | 962166 |
| 36 | 1036806 |
| 37 | 1156866 |
| 38 | 1286448 |
| 39 | 1390878 |
| 40 | 1534754 |