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 | 11 |
| 2 | 47 |
| 3 | 107 |
| 4 | 191 |
| 5 | 299 |
| 6 | 431 |
| 7 | 587 |
| 8 | 767 |
| 9 | 971 |
| 10 | 1199 |
| 11 | 1451 |
| 12 | 1727 |
| 13 | 2027 |
| 14 | 2351 |
| 15 | 2699 |
| 16 | 3071 |
| 17 | 3467 |
| 18 | 3887 |
| 19 | 4331 |
| 20 | 4799 |
| 21 | 5291 |
| 22 | 5807 |
| 23 | 6347 |
| 24 | 6911 |
| 25 | 7499 |
| 26 | 8111 |
| 27 | 8747 |
| 28 | 9407 |
| 29 | 10091 |
| 30 | 10799 |
| 31 | 11531 |
| 32 | 12287 |
| 33 | 13067 |
| 34 | 13871 |
| 35 | 14699 |
| 36 | 15551 |
| 37 | 16427 |
| 38 | 17327 |
| 39 | 18251 |
| 40 | 19199 |
| 41 | 20171 |
| 42 | 21167 |
| 43 | 22187 |