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 | 4 |
| 3 | 12 |
| 4 | 28 |
| 5 | 60 |
| 6 | 114 |
| 7 | 210 |
| 8 | 360 |
| 9 | 603 |
| 10 | 970 |
| 11 | 1529 |
| 12 | 2340 |
| 13 | 3536 |
| 14 | 5222 |
| 15 | 7620 |
| 16 | 10944 |
| 17 | 15555 |
| 18 | 21816 |
| 19 | 30343 |
| 20 | 41740 |
| 21 | 56994 |
| 22 | 77132 |
| 23 | 103684 |
| 24 | 138312 |
| 25 | 183450 |
| 26 | 241696 |
| 27 | 316764 |
| 28 | 412776 |
| 29 | 535340 |
| 30 | 690750 |
| 31 | 887499 |
| 32 | 1135072 |
| 33 | 1446060 |
| 34 | 1834742 |
| 35 | 2319555 |
| 36 | 2921616 |
| 37 | 3667921 |
| 38 | 4589260 |