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 | 643266 |
| 2 | 8813528 |
| 3 | 1644953 |
| 4 | 440421 |
| 5 | 2826655 |
| 6 | 1339785 |
| 7 | 2775232 |
| 8 | 988180 |
| 9 | 196973 |
| 10 | 643136 |
| 11 | 4122122 |
| 12 | 3477939 |
| 13 | 182124 |
| 14 | 6195602 |
| 15 | 130854 |
| 16 | 4937610 |
| 17 | 2725523 |
| 18 | 6118932 |
| 19 | 231670 |
| 20 | 478208 |
| 21 | 2405748 |
| 22 | 3913626 |
| 23 | 1033788 |
| 24 | 2945487 |
| 25 | 22952758 |
| 26 | 7168835 |
| 27 | 15528738 |
| 28 | 2753214 |
| 29 | 2407038 |
| 30 | 37795639 |