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 | 4 |
| 2 | 6 |
| 3 | 22 |
| 4 | 135 |
| 5 | 166 |
| 6 | 444 |
| 7 | 454 |
| 8 | 636 |
| 9 | 650 |
| 10 | 854 |
| 11 | 886 |
| 12 | 1086 |
| 13 | 1122 |
| 14 | 1196 |
| 15 | 1431 |
| 16 | 1928 |
| 17 | 2182 |
| 18 | 2244 |
| 19 | 2316 |
| 20 | 2702 |
| 21 | 3046 |
| 22 | 3464 |
| 23 | 3510 |
| 24 | 3770 |
| 25 | 4004 |
| 26 | 4054 |
| 27 | 4125 |
| 28 | 4476 |
| 29 | 4671 |
| 30 | 5052 |
| 31 | 5106 |
| 32 | 5394 |
| 33 | 5450 |
| 34 | 6435 |
| 35 | 6502 |
| 36 | 6750 |
| 37 | 8076 |
| 38 | 8264 |
| 39 | 8500 |
| 40 | 9170 |
| 41 | 9471 |
| 42 | 9726 |
| 43 | 10035 |
| 44 | 10386 |
| 45 | 10648 |
| 46 | 10659 |
| 47 | 11228 |
| 48 | 11495 |
| 49 | 11515 |
| 50 | 11935 |
| 51 | 12732 |