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 | 0 |
| 2 | 2 |
| 3 | 6 |
| 4 | 24 |
| 5 | 26 |
| 6 | 124 |
| 7 | 122 |
| 8 | 126 |
| 9 | 722 |
| 10 | 728 |
| 11 | 726 |
| 12 | 750 |
| 13 | 746 |
| 14 | 5046 |
| 15 | 5064 |
| 16 | 5164 |
| 17 | 5070 |
| 18 | 5066 |
| 19 | 5162 |
| 20 | 40370 |
| 21 | 5166 |
| 22 | 40350 |
| 23 | 40346 |
| 24 | 40464 |
| 25 | 40448 |
| 26 | 40442 |
| 27 | 40466 |
| 28 | 362906 |
| 29 | 40446 |
| 30 | 41046 |
| 31 | 41070 |
| 32 | 363008 |
| 33 | 363002 |
| 34 | 41066 |
| 35 | 363026 |
| 36 | 363628 |
| 37 | 363006 |
| 38 | 367948 |
| 39 | 364346 |
| 40 | 363624 |
| 41 | 363606 |
| 42 | 368044 |