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 | 341 |
| 2 | 1105 |
| 3 | 1387 |
| 4 | 2047 |
| 5 | 2701 |
| 6 | 3277 |
| 7 | 4033 |
| 8 | 4369 |
| 9 | 4681 |
| 10 | 5461 |
| 11 | 7957 |
| 12 | 8321 |
| 13 | 10261 |
| 14 | 13747 |
| 15 | 13981 |
| 16 | 14491 |
| 17 | 15709 |
| 18 | 18721 |
| 19 | 19951 |
| 20 | 23377 |
| 21 | 31417 |
| 22 | 31609 |
| 23 | 31621 |
| 24 | 35333 |
| 25 | 42799 |
| 26 | 49141 |
| 27 | 49981 |
| 28 | 60701 |
| 29 | 60787 |
| 30 | 65077 |
| 31 | 65281 |
| 32 | 68101 |
| 33 | 80581 |
| 34 | 83333 |
| 35 | 85489 |
| 36 | 88357 |
| 37 | 90751 |
| 38 | 104653 |
| 39 | 123251 |
| 40 | 129889 |