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 | 25 |
| 2 | 52 |
| 3 | 125 |
| 4 | 152 |
| 5 | 215 |
| 6 | 251 |
| 7 | 512 |
| 8 | 521 |
| 9 | 1125 |
| 10 | 1152 |
| 11 | 1215 |
| 12 | 1251 |
| 13 | 1512 |
| 14 | 1521 |
| 15 | 2115 |
| 16 | 2151 |
| 17 | 2511 |
| 18 | 5112 |
| 19 | 5121 |
| 20 | 5211 |
| 21 | 11125 |
| 22 | 11152 |
| 23 | 11215 |
| 24 | 11251 |
| 25 | 11512 |
| 26 | 11521 |
| 27 | 12115 |
| 28 | 12151 |
| 29 | 12511 |
| 30 | 15112 |
| 31 | 15121 |
| 32 | 15211 |
| 33 | 21115 |
| 34 | 21151 |
| 35 | 21511 |
| 36 | 25111 |
| 37 | 51112 |
| 38 | 51121 |
| 39 | 51211 |
| 40 | 52111 |
| 41 | 111125 |