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 | 23 |
| 2 | 653 |
| 3 | 947 |
| 4 | 2027 |
| 5 | 4133 |
| 6 | 5431 |
| 7 | 18433 |
| 8 | 30089 |
| 9 | 39733 |
| 10 | 61667 |
| 11 | 71233 |
| 12 | 120947 |
| 13 | 148439 |
| 14 | 163673 |
| 15 | 238801 |
| 16 | 265813 |
| 17 | 493853 |
| 18 | 502499 |
| 19 | 1070033 |
| 20 | 1100921 |
| 21 | 1139141 |
| 22 | 1176127 |
| 23 | 1207447 |
| 24 | 1364401 |
| 25 | 1959961 |
| 26 | 1979281 |
| 27 | 2164471 |
| 28 | 3156319 |
| 29 | 3175967 |
| 30 | 3195233 |