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 | 2 |
| 3 | 29 |
| 4 | 52 |
| 5 | 887 |
| 6 | 8066 |
| 7 | 11069 |
| 8 | 143128 |
| 9 | 3485197 |
| 10 | 2792362 |
| 11 | 78773861 |
| 12 | 326941444 |
| 13 | 1166735057 |
| 14 | 28815727078 |
| 15 | 1038855637093 |
| 16 | 902109848368 |
| 17 | 1031041592023 |
| 18 | 33635927876926 |
| 19 | 37917122954701 |
| 20 | 1387635433109516 |
| 21 | 66513954553071413 |
| 22 | 59972573887236398 |
| 23 | 3113073102662686381 |