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 | 15 |
| 3 | 77 |
| 4 | 247 |
| 5 | 609 |
| 6 | 1271 |
| 7 | 2365 |
| 8 | 4047 |
| 9 | 6497 |
| 10 | 9919 |
| 11 | 14541 |
| 12 | 20615 |
| 13 | 28417 |
| 14 | 38247 |
| 15 | 50429 |
| 16 | 65311 |
| 17 | 83265 |
| 18 | 104687 |
| 19 | 129997 |
| 20 | 159639 |
| 21 | 194081 |
| 22 | 233815 |
| 23 | 279357 |
| 24 | 331247 |
| 25 | 390049 |
| 26 | 456351 |
| 27 | 530765 |
| 28 | 613927 |
| 29 | 706497 |
| 30 | 809159 |
| 31 | 922621 |