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 | 137 |
| 3 | 251 |
| 4 | 353 |
| 5 | 2213 |
| 6 | 4933 |
| 7 | 24421 |
| 8 | 78137 |
| 9 | 148933 |
| 10 | 205441 |
| 11 | 371311 |
| 12 | 493121 |
| 13 | 524309 |
| 14 | 571873 |
| 15 | 912773 |
| 16 | 1225153 |
| 17 | 1594339 |
| 18 | 4330913 |
| 19 | 7189253 |
| 20 | 13652161 |
| 21 | 18191713 |
| 22 | 21254213 |
| 23 | 28629187 |
| 24 | 31855333 |
| 25 | 42508901 |
| 26 | 49431233 |
| 27 | 73560481 |
| 28 | 81183173 |
| 29 | 99253313 |
| 30 | 178454113 |
| 31 | 184220581 |
| 32 | 192100613 |