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) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 1 |
| 3 | 18 |
| 4 | 24 |
| 5 | 1 |
| 6 | 40 |
| 7 | 180 |
| 8 | 60 |
| 9 | 1 |
| 10 | 75 |
| 11 | 800 |
| 12 | 900 |
| 13 | 120 |
| 14 | 1 |
| 15 | 126 |
| 16 | 2625 |
| 17 | 7000 |
| 18 | 3150 |
| 19 | 210 |
| 20 | 1 |
| 21 | 196 |
| 22 | 7056 |
| 23 | 36750 |
| 24 | 39200 |
| 25 | 8820 |
| 26 | 336 |
| 27 | 1 |
| 28 | 288 |
| 29 | 16464 |
| 30 | 148176 |
| 31 | 308700 |
| 32 | 164640 |
| 33 | 21168 |
| 34 | 504 |
| 35 | 1 |
| 36 | 405 |
| 37 | 34560 |
| 38 | 493920 |
| 39 | 1778112 |
| 40 | 1852200 |
| 41 | 564480 |
| 42 | 45360 |
| 43 | 720 |
| 44 | 1 |
| 45 | 550 |
| 46 | 66825 |
| 47 | 1425600 |
| 48 | 8149680 |
| 49 | 14669424 |
| 50 | 8731800 |
| 51 | 1663200 |
| 52 | 89100 |
| 53 | 990 |
| 54 | 1 |
| 55 | 726 |
| 56 | 121000 |
| 57 | 3675375 |
| 58 | 31363200 |
| 59 | 89646480 |
| 60 | 92207808 |
| 61 | 34303500 |
| 62 | 4356000 |
| 63 | 163350 |
| 64 | 1320 |
| 65 | 1 |