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 | 15 |
| 2 | 21 |
| 3 | 91 |
| 4 | 171 |
| 5 | 666 |
| 6 | 703 |
| 7 | 820 |
| 8 | 1830 |
| 9 | 1953 |
| 10 | 3003 |
| 11 | 3081 |
| 12 | 4095 |
| 13 | 7140 |
| 14 | 7381 |
| 15 | 10440 |
| 16 | 12720 |
| 17 | 14706 |
| 18 | 16471 |
| 19 | 16653 |
| 20 | 18915 |
| 21 | 23871 |
| 22 | 24976 |
| 23 | 30628 |
| 24 | 47586 |
| 25 | 47895 |
| 26 | 48828 |
| 27 | 66430 |
| 28 | 71631 |
| 29 | 79401 |
| 30 | 95703 |
| 31 | 101475 |
| 32 | 104653 |
| 33 | 119805 |
| 34 | 128778 |
| 35 | 148240 |
| 36 | 148785 |
| 37 | 173166 |
| 38 | 191271 |
| 39 | 221445 |