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 | 61 |
| 2 | 163 |
| 3 | 263 |
| 4 | 461 |
| 5 | 463 |
| 6 | 563 |
| 7 | 601 |
| 8 | 613 |
| 9 | 631 |
| 10 | 641 |
| 11 | 643 |
| 12 | 653 |
| 13 | 661 |
| 14 | 1061 |
| 15 | 1063 |
| 16 | 1163 |
| 17 | 1361 |
| 18 | 1601 |
| 19 | 1613 |
| 20 | 1621 |
| 21 | 1663 |
| 22 | 2063 |
| 23 | 2161 |
| 24 | 2621 |
| 25 | 2633 |
| 26 | 2663 |
| 27 | 3061 |
| 28 | 3163 |
| 29 | 3361 |
| 30 | 3461 |
| 31 | 3463 |
| 32 | 3613 |
| 33 | 3623 |
| 34 | 3631 |
| 35 | 3643 |
| 36 | 4261 |
| 37 | 4363 |
| 38 | 4463 |
| 39 | 4561 |
| 40 | 4603 |
| 41 | 4621 |
| 42 | 4643 |
| 43 | 4651 |
| 44 | 4663 |
| 45 | 5261 |