Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 49 |
4 | 344 |
5 | 2408 |
6 | 16856 |
7 | 117993 |
8 | 825951 |
9 | 5781657 |
10 | 40471600 |
11 | 283301200 |
12 | 1983108400 |
13 | 13881758801 |
14 | 97172311607 |
15 | 680206181249 |
16 | 4761443268744 |
17 | 33330102881208 |
18 | 233310720168456 |
19 | 1633175041179193 |
20 | 11432225288254351 |
21 | 80025577017780457 |
22 | 560179039124463200 |
23 | 3921253273871242400 |
[1,7,49,344,2408,16856,117993,825951,5781657, 40471600,283301200,1983108400,13881758801, 97172311607,680206181249,4761443268744, 33330102881208,233310720168456,1633175041179193, 11432225288254351,80025577017780457, 560179039124463200,3921253273871242400] |