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 | 11 |
| 3 | 41 |
| 4 | 125 |
| 5 | 255 |
| 6 | 555 |
| 7 | 905 |
| 8 | 1585 |
| 9 | 2404 |
| 10 | 3704 |
| 11 | 5046 |
| 12 | 7566 |
| 13 | 9776 |
| 14 | 13276 |
| 15 | 17176 |
| 16 | 22632 |
| 17 | 27562 |
| 18 | 35752 |
| 19 | 42630 |
| 20 | 53550 |
| 21 | 64050 |
| 22 | 77470 |
| 23 | 89660 |
| 24 | 110060 |
| 25 | 126335 |
| 26 | 148435 |
| 27 | 170575 |
| 28 | 199975 |
| 29 | 224393 |
| 30 | 263393 |
| 31 | 293215 |
| 32 | 336895 |
| 33 | 377155 |
| 34 | 426455 |
| 35 | 471955 |
| 36 | 540751 |
| 37 | 591441 |
| 38 | 660221 |
| 39 | 726521 |