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) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 19 |
| 3 | 45 |
| 4 | 90 |
| 5 | 159 |
| 6 | 257 |
| 7 | 390 |
| 8 | 563 |
| 9 | 781 |
| 10 | 1050 |
| 11 | 1375 |
| 12 | 1761 |
| 13 | 2214 |
| 14 | 2739 |
| 15 | 3341 |
| 16 | 4026 |
| 17 | 4799 |
| 18 | 5665 |
| 19 | 6630 |
| 20 | 7699 |
| 21 | 8877 |
| 22 | 10170 |
| 23 | 11583 |
| 24 | 13121 |
| 25 | 14790 |
| 26 | 16595 |
| 27 | 18541 |
| 28 | 20634 |
| 29 | 22879 |
| 30 | 25281 |
| 31 | 27846 |
| 32 | 30579 |
| 33 | 33485 |
| 34 | 36570 |
| 35 | 39839 |
| 36 | 43297 |
| 37 | 46950 |
| 38 | 50803 |
| 39 | 54861 |
| 40 | 59130 |