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 | 0 |
2 | 2 |
3 | 10 |
4 | 70 |
5 | 680 |
6 | 8346 |
7 | 125504 |
8 | 2218350 |
9 | 45335680 |
10 | 1047314578 |
11 | 27079557632 |
12 | 772687787510 |
13 | 24172386314240 |
14 | 821114930966890 |
15 | 30146801401143296 |
16 | 1187943632192716894 |
17 | 50068690149298438144 |
18 | 2245175953053786221730 |
19 | 106828553482726336102400 |
20 | 5371204894269759411503910 |