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 | 19 |
| 3 | 85 |
| 4 | 311 |
| 5 | 631 |
| 6 | 1615 |
| 7 | 2409 |
| 8 | 4991 |
| 9 | 6898 |
| 10 | 11989 |
| 11 | 14653 |
| 12 | 26435 |
| 13 | 28575 |
| 14 | 45771 |
| 15 | 53635 |
| 16 | 79887 |
| 17 | 83539 |
| 18 | 131062 |
| 19 | 130341 |
| 20 | 196241 |
| 21 | 204765 |
| 22 | 278407 |
| 23 | 279865 |
| 24 | 424235 |
| 25 | 394406 |
| 26 | 542925 |
| 27 | 558778 |
| 28 | 749199 |
| 29 | 707311 |
| 30 | 1019065 |
| 31 | 923553 |
| 32 | 1278255 |
| 33 | 1245505 |
| 34 | 1587241 |
| 35 | 1520079 |
| 36 | 2145278 |
| 37 | 1874199 |
| 38 | 2476479 |
| 39 | 2428875 |
| 40 | 3149321 |
| 41 | 2825803 |
| 42 | 3890535 |
| 43 | 3418845 |
| 44 | 4557083 |
| 45 | 4352638 |
| 46 | 5317435 |