Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 12 |
3 | 52 |
4 | 156 |
5 | 612 |
6 | 2028 |
7 | 7892 |
8 | 27324 |
9 | 107396 |
10 | 384844 |
11 | 1520436 |
12 | 5566876 |
13 | 22069796 |
14 | 81990252 |
15 | 325707348 |
16 | 1222582268 |
17 | 4862950020 |
18 | 18395472460 |
19 | 73233825524 |
20 | 278700724764 |
21 | 1110232691108 |
22 | 4245596648876 |
23 | 16920914168148 |
24 | 64963831455996 |
25 | 259012955299396 |
[1,4,12,52,156,612,2028,7892,27324,107396,384844, 1520436,5566876,22069796,81990252,325707348, 1222582268,4862950020,18395472460,73233825524, 278700724764,1110232691108,4245596648876, 16920914168148,64963831455996,259012955299396] |