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 | 11 |
| 2 | 41 |
| 3 | 61 |
| 4 | 181 |
| 5 | 461 |
| 6 | 641 |
| 7 | 661 |
| 8 | 811 |
| 9 | 881 |
| 10 | 1181 |
| 11 | 1481 |
| 12 | 1811 |
| 13 | 1861 |
| 14 | 4111 |
| 15 | 4441 |
| 16 | 4481 |
| 17 | 4861 |
| 18 | 6481 |
| 19 | 6661 |
| 20 | 6841 |
| 21 | 8111 |
| 22 | 8161 |
| 23 | 8461 |
| 24 | 8641 |
| 25 | 8681 |
| 26 | 8861 |
| 27 | 11161 |
| 28 | 11411 |
| 29 | 11681 |
| 30 | 14411 |
| 31 | 14461 |
| 32 | 16111 |
| 33 | 16141 |
| 34 | 16411 |
| 35 | 16481 |
| 36 | 16661 |
| 37 | 16811 |
| 38 | 18181 |
| 39 | 18461 |
| 40 | 18481 |
| 41 | 18661 |
| 42 | 41141 |
| 43 | 41161 |