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 | 5 |
| 2 | 18 |
| 3 | 53 |
| 4 | 102 |
| 5 | 197 |
| 6 | 306 |
| 7 | 491 |
| 8 | 684 |
| 9 | 989 |
| 10 | 1290 |
| 11 | 1745 |
| 12 | 2178 |
| 13 | 2813 |
| 14 | 3402 |
| 15 | 4247 |
| 16 | 5016 |
| 17 | 6101 |
| 18 | 7074 |
| 19 | 8429 |
| 20 | 9630 |
| 21 | 11285 |
| 22 | 12738 |
| 23 | 14723 |
| 24 | 16452 |
| 25 | 18797 |
| 26 | 20826 |
| 27 | 23561 |
| 28 | 25914 |
| 29 | 29069 |
| 30 | 31770 |
| 31 | 35375 |
| 32 | 38448 |
| 33 | 42533 |
| 34 | 46002 |
| 35 | 50597 |
| 36 | 54486 |
| 37 | 59621 |
| 38 | 63954 |
| 39 | 69659 |
| 40 | 74460 |
| 41 | 80765 |
| 42 | 86058 |