Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 22 |
4 | 152 |
5 | 680 |
6 | 2270 |
7 | 6202 |
8 | 14672 |
9 | 31152 |
10 | 60810 |
11 | 110990 |
12 | 191752 |
13 | 316472 |
14 | 502502 |
15 | 771890 |
16 | 1152160 |
17 | 1677152 |
18 | 2387922 |
19 | 3333702 |
20 | 4572920 |
21 | 6174280 |
22 | 8217902 |
23 | 10796522 |
24 | 14016752 |
25 | 18000400 |
26 | 22885850 |
27 | 28829502 |
28 | 36007272 |
29 | 44616152 |
30 | 54875830 |
31 | 67030370 |
32 | 81349952 |
[0,0,2,22,152,680,2270,6202,14672,31152,60810, 110990,191752,316472,502502,771890,1152160, 1677152,2387922,3333702,4572920,6174280,8217902, 10796522,14016752,18000400,22885850,28829502, 36007272,44616152,54875830,67030370,81349952] |