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 | 47 |
| 2 | 71 |
| 3 | 251 |
| 4 | 2777 |
| 5 | 5801 |
| 6 | 14657 |
| 7 | 18401 |
| 8 | 33521 |
| 9 | 115751 |
| 10 | 246497 |
| 11 | 340877 |
| 12 | 345647 |
| 13 | 382541 |
| 14 | 675071 |
| 15 | 703631 |
| 16 | 809297 |
| 17 | 1136567 |
| 18 | 1237487 |
| 19 | 1454927 |
| 20 | 1506917 |
| 21 | 2226467 |
| 22 | 2832941 |
| 23 | 2925077 |
| 24 | 2973017 |
| 25 | 3170357 |
| 26 | 3309167 |
| 27 | 3382217 |
| 28 | 3505571 |
| 29 | 3951401 |