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 | 0 |
1 | 1 |
2 | -5 |
3 | 20 |
4 | -72 |
5 | 249 |
6 | -825 |
7 | 2736 |
8 | -8568 |
9 | 29385 |
10 | -74709 |
11 | 417636 |
12 | 698544 |
13 | 21853233 |
14 | 244181223 |
15 | 3608612208 |
16 | 54277152624 |
17 | 878859416817 |
18 | 15072037479099 |
19 | 273539358115092 |
20 | 5235734703888648 |
21 | 105419854939796937 |
22 | 2227408664800976487 |
23 | 49278475088626210704 |
24 | 1139260699549648412856 |