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 | 4 |
| 2 | 9 |
| 3 | 16 |
| 4 | 64 |
| 5 | 69 |
| 6 | 218 |
| 7 | 592 |
| 8 | 808 |
| 9 | 910 |
| 10 | 1921 |
| 11 | 1957 |
| 12 | 2648 |
| 13 | 2860 |
| 14 | 7609 |
| 15 | 13462 |
| 16 | 14953 |
| 17 | 16838 |
| 18 | 20688 |
| 19 | 27050 |
| 20 | 44471 |
| 21 | 80440 |
| 22 | 91860 |
| 23 | 122351 |
| 24 | 131095 |
| 25 | 154606 |
| 26 | 166121 |
| 27 | 171396 |
| 28 | 226831 |
| 29 | 257467 |
| 30 | 318016 |
| 31 | 614626 |
| 32 | 726560 |
| 33 | 1225277 |
| 34 | 1366686 |
| 35 | 1465910 |
| 36 | 1508284 |
| 37 | 1790754 |
| 38 | 1816934 |
| 39 | 1873100 |