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 | 41 |
| 2 | 43 |
| 3 | 47 |
| 4 | 401 |
| 5 | 409 |
| 6 | 419 |
| 7 | 421 |
| 8 | 431 |
| 9 | 433 |
| 10 | 439 |
| 11 | 443 |
| 12 | 449 |
| 13 | 457 |
| 14 | 461 |
| 15 | 463 |
| 16 | 467 |
| 17 | 479 |
| 18 | 487 |
| 19 | 491 |
| 20 | 499 |
| 21 | 4001 |
| 22 | 4003 |
| 23 | 4007 |
| 24 | 4013 |
| 25 | 4019 |
| 26 | 4021 |
| 27 | 4027 |
| 28 | 4049 |
| 29 | 4051 |
| 30 | 4057 |
| 31 | 4073 |
| 32 | 4079 |
| 33 | 4091 |
| 34 | 4093 |
| 35 | 4099 |
| 36 | 4111 |
| 37 | 4127 |
| 38 | 4129 |
| 39 | 4133 |
| 40 | 4139 |
| 41 | 4153 |
| 42 | 4157 |
| 43 | 4159 |
| 44 | 4177 |
| 45 | 4201 |
| 46 | 4211 |