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) |
|---|---|
| 0 | 1 |
| 1 | 19 |
| 2 | 69 |
| 3 | 151 |
| 4 | 265 |
| 5 | 411 |
| 6 | 589 |
| 7 | 799 |
| 8 | 1041 |
| 9 | 1315 |
| 10 | 1621 |
| 11 | 1959 |
| 12 | 2329 |
| 13 | 2731 |
| 14 | 3165 |
| 15 | 3631 |
| 16 | 4129 |
| 17 | 4659 |
| 18 | 5221 |
| 19 | 5815 |
| 20 | 6441 |
| 21 | 7099 |
| 22 | 7789 |
| 23 | 8511 |
| 24 | 9265 |
| 25 | 10051 |
| 26 | 10869 |
| 27 | 11719 |
| 28 | 12601 |
| 29 | 13515 |
| 30 | 14461 |
| 31 | 15439 |
| 32 | 16449 |
| 33 | 17491 |
| 34 | 18565 |
| 35 | 19671 |
| 36 | 20809 |
| 37 | 21979 |
| 38 | 23181 |
| 39 | 24415 |
| 40 | 25681 |
| 41 | 26979 |