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 | 5 |
| 2 | 15 |
| 3 | 29 |
| 4 | 47 |
| 5 | 71 |
| 6 | 99 |
| 7 | 131 |
| 8 | 169 |
| 9 | 211 |
| 10 | 257 |
| 11 | 309 |
| 12 | 365 |
| 13 | 425 |
| 14 | 491 |
| 15 | 561 |
| 16 | 635 |
| 17 | 715 |
| 18 | 799 |
| 19 | 887 |
| 20 | 981 |
| 21 | 1079 |
| 22 | 1181 |
| 23 | 1289 |
| 24 | 1401 |
| 25 | 1517 |
| 26 | 1639 |
| 27 | 1765 |
| 28 | 1895 |
| 29 | 2031 |
| 30 | 2171 |
| 31 | 2315 |
| 32 | 2465 |
| 33 | 2619 |
| 34 | 2777 |
| 35 | 2941 |
| 36 | 3109 |
| 37 | 3281 |
| 38 | 3459 |
| 39 | 3641 |
| 40 | 3827 |
| 41 | 4019 |
| 42 | 4215 |
| 43 | 4415 |
| 44 | 4621 |
| 45 | 4831 |
| 46 | 5045 |
| 47 | 5265 |