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 | 10 |
| 2 | 29 |
| 3 | 109 |
| 4 | 599 |
| 5 | 4397 |
| 6 | 42043 |
| 7 | 506683 |
| 8 | 7474967 |
| 9 | 131807699 |
| 10 | 2724711961 |
| 11 | 64988430769 |
| 12 | 1765037224331 |
| 13 | 53982894593057 |
| 14 | 1841803943951113 |
| 15 | 69532764058102673 |
| 16 | 2884247930418152801 |