n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 18 |
6 | 58 |
7 | 221 |
8 | 1055 |
9 | 6485 |
10 | 50536 |
11 | 478836 |
12 | 5440177 |
13 | 76190368 |
14 | 1363369202 |
15 | 31071197441 |
16 | 868697997215 |
17 | 29108097152159 |
18 | 1188937117381254 |
19 | 61492149340335133 |
20 | 4073478163425582443 |
21 | 335184988593624746984 |
22 | 33170032360612393972748 |
[1,1,2,3,7,18,58,221,1055,6485,50536,478836, 5440177,76190368,1363369202,31071197441, 868697997215,29108097152159,1188937117381254, 61492149340335133,4073478163425582443, 335184988593624746984,33170032360612393972748] |