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 | 132 |
| 2 | 264 |
| 3 | 396 |
| 4 | 8991 |
| 5 | 10545 |
| 6 | 35964 |
| 7 | 255530 |
| 8 | 1559844 |
| 9 | 9299907 |
| 10 | 47755078 |
| 11 | 89599104 |
| 12 | 167264994 |
| 13 | 283797162 |
| 14 | 473995260 |
| 15 | 3929996070 |
| 16 | 6379993620 |
| 17 | 10009998999 |
| 18 | 11111111110 |
| 19 | 22222222220 |
| 20 | 33333333330 |
| 21 | 44444444440 |
| 22 | 55555555550 |
| 23 | 66666666660 |
| 24 | 77777777770 |
| 25 | 88888888880 |
| 26 | 99999999990 |