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 | 1 |
| 2 | 21 |
| 3 | 61 |
| 4 | 121 |
| 5 | 201 |
| 6 | 301 |
| 7 | 421 |
| 8 | 561 |
| 9 | 721 |
| 10 | 901 |
| 11 | 1101 |
| 12 | 1321 |
| 13 | 1561 |
| 14 | 1821 |
| 15 | 2101 |
| 16 | 2401 |
| 17 | 2721 |
| 18 | 3061 |
| 19 | 3421 |
| 20 | 3801 |
| 21 | 4201 |
| 22 | 4621 |
| 23 | 5061 |
| 24 | 5521 |
| 25 | 6001 |
| 26 | 6501 |
| 27 | 7021 |
| 28 | 7561 |
| 29 | 8121 |
| 30 | 8701 |
| 31 | 9301 |
| 32 | 9921 |
| 33 | 10561 |
| 34 | 11221 |
| 35 | 11901 |
| 36 | 12601 |
| 37 | 13321 |
| 38 | 14061 |
| 39 | 14821 |
| 40 | 15601 |
| 41 | 16401 |
| 42 | 17221 |
| 43 | 18061 |
| 44 | 18921 |
| 45 | 19801 |