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 | 421 |
| 2 | 631 |
| 3 | 1051 |
| 4 | 1471 |
| 5 | 2311 |
| 6 | 2731 |
| 7 | 3571 |
| 8 | 4831 |
| 9 | 6091 |
| 10 | 9871 |
| 11 | 11131 |
| 12 | 12391 |
| 13 | 14071 |
| 14 | 15331 |
| 15 | 17431 |
| 16 | 18691 |
| 17 | 21211 |
| 18 | 28771 |
| 19 | 29191 |
| 20 | 32971 |
| 21 | 34231 |
| 22 | 37591 |
| 23 | 38011 |
| 24 | 40111 |
| 25 | 40531 |
| 26 | 46831 |
| 27 | 48091 |
| 28 | 52711 |
| 29 | 56911 |
| 30 | 58171 |
| 31 | 59011 |
| 32 | 65731 |
| 33 | 66571 |
| 34 | 72871 |
| 35 | 73291 |
| 36 | 74131 |
| 37 | 75391 |
| 38 | 84211 |
| 39 | 87991 |