n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 8 |
5 | 29 |
6 | 166 |
7 | 1023 |
8 | 6922 |
9 | 48311 |
10 | 346543 |
11 | 2522522 |
12 | 18598427 |
13 | 138462649 |
14 | 1039496297 |
15 | 7859514470 |
16 | 59795121480 |
17 | 457409613979 |
18 | 3516009200564 |
19 | 27144143923583 |
20 | 210375361379518 |
21 | 1636229771639924 |
22 | 12766882202755783 |
[1,1,2,8,29,166,1023,6922,48311,346543,2522522, 18598427,138462649,1039496297,7859514470, 59795121480,457409613979,3516009200564, 27144143923583,210375361379518,1636229771639924, 12766882202755783] |