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 | 13 |
| 2 | 37 |
| 3 | 613 |
| 4 | 919 |
| 5 | 1021 |
| 6 | 1123 |
| 7 | 1327 |
| 8 | 1429 |
| 9 | 1531 |
| 10 | 2143 |
| 11 | 2347 |
| 12 | 2551 |
| 13 | 2857 |
| 14 | 3061 |
| 15 | 3163 |
| 16 | 3469 |
| 17 | 3571 |
| 18 | 3673 |
| 19 | 3877 |
| 20 | 4591 |
| 21 | 4999 |
| 22 | 50101 |
| 23 | 56113 |
| 24 | 59119 |
| 25 | 63127 |
| 26 | 70141 |
| 27 | 71143 |
| 28 | 74149 |
| 29 | 78157 |
| 30 | 79159 |
| 31 | 81163 |
| 32 | 88177 |
| 33 | 91183 |
| 34 | 93187 |
| 35 | 95191 |
| 36 | 101203 |
| 37 | 105211 |
| 38 | 106213 |
| 39 | 108217 |
| 40 | 110221 |
| 41 | 113227 |
| 42 | 114229 |