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 | 31 |
| 2 | 191 |
| 3 | 821 |
| 4 | 3271 |
| 5 | 11171 |
| 6 | 13121 |
| 7 | 14591 |
| 8 | 21521 |
| 9 | 27751 |
| 10 | 30341 |
| 11 | 35951 |
| 12 | 37561 |
| 13 | 39671 |
| 14 | 40231 |
| 15 | 43651 |
| 16 | 51061 |
| 17 | 51551 |
| 18 | 56671 |
| 19 | 68161 |
| 20 | 73681 |
| 21 | 84871 |
| 22 | 91541 |
| 23 | 92581 |
| 24 | 102031 |
| 25 | 102871 |
| 26 | 102881 |
| 27 | 104971 |
| 28 | 117281 |
| 29 | 127781 |
| 30 | 128201 |
| 31 | 128551 |
| 32 | 128761 |
| 33 | 138511 |
| 34 | 148091 |