n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 27 |
6 | 87 |
7 | 312 |
8 | 1269 |
9 | 5703 |
10 | 28082 |
11 | 149643 |
12 | 855938 |
13 | 5217753 |
14 | 33712046 |
15 | 229799508 |
16 | 1646314498 |
17 | 12355371024 |
18 | 96861186897 |
19 | 791258791159 |
20 | 6720627161903 |
21 | 59234364141343 |
22 | 540812222291531 |
23 | 5106663817387466 |
24 | 49798678281320763 |
25 | 500857393909589995 |
[1,1,2,4,10,27,87,312,1269,5703,28082,149643, 855938,5217753,33712046,229799508,1646314498, 12355371024,96861186897,791258791159, 6720627161903,59234364141343,540812222291531, 5106663817387466,49798678281320763, 500857393909589995] |