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 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 1 |
| 6 | 44 |
| 7 | 1 |
| 8 | 235 |
| 9 | 921 |
| 10 | 4038 |
| 11 | 1 |
| 12 | 66147 |
| 13 | 1 |
| 14 | 304383 |
| 15 | 6581754 |
| 16 | 45353329 |
| 17 | 1 |
| 18 | 1100311690 |
| 19 | 1 |
| 20 | 44423279911 |
| 21 | 1250831952086 |
| 22 | 284120133400 |
| 23 | 1 |
| 24 | 71664788693247 |
| 25 | 511162204140999 |
| 26 | 55479698795314 |
| 27 | 10715917223431762 |
| 28 | 505603414069366830 |
| 29 | 1 |
| 30 | 28696102343693431631 |
| 31 | 1 |
| 32 | 857699266471525509621 |
| 33 | 30399386408588668316839 |
| 34 | 63063040603038091480 |