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 | 191 |
| 2 | 521 |
| 3 | 631 |
| 4 | 1181 |
| 5 | 1291 |
| 6 | 1511 |
| 7 | 1621 |
| 8 | 1951 |
| 9 | 2281 |
| 10 | 3271 |
| 11 | 3491 |
| 12 | 3821 |
| 13 | 3931 |
| 14 | 4261 |
| 15 | 4481 |
| 16 | 4591 |
| 17 | 5471 |
| 18 | 5581 |
| 19 | 5801 |
| 20 | 6131 |
| 21 | 6571 |
| 22 | 6791 |
| 23 | 7121 |
| 24 | 7451 |
| 25 | 7561 |
| 26 | 8111 |
| 27 | 8221 |
| 28 | 9431 |
| 29 | 9871 |
| 30 | 10091 |
| 31 | 10531 |
| 32 | 10861 |
| 33 | 11411 |
| 34 | 12071 |
| 35 | 12401 |
| 36 | 12511 |
| 37 | 12841 |
| 38 | 13171 |
| 39 | 13721 |
| 40 | 13831 |
| 41 | 14051 |