Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 2 |
4 | 7 |
5 | 3 |
6 | 9 |
7 | 69 |
8 | 177 |
9 | 60 |
10 | 2715 |
11 | 4500 |
12 | 42975 |
13 | 104580 |
14 | 91665 |
15 | 186795 |
16 | 3493665 |
17 | 13497435 |
18 | 97345395 |
19 | 442245825 |
20 | 2601636975 |
21 | 13003053525 |
22 | 70985324025 |
23 | 64585694250 |
24 | 57891366225 |
25 | 3576632909850 |
26 | 9411029102475 |
27 | 147580842959550 |
28 | 476966861546175 |
29 | 5708173568847750 |
[0,0,1,2,7,3,9,69,177,60,2715,4500,42975,104580, 91665,186795,3493665,13497435,97345395,442245825, 2601636975,13003053525,70985324025,64585694250, 57891366225,3576632909850,9411029102475, 147580842959550,476966861546175,5708173568847750] |