n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 20 |
6 | 49 |
7 | 118 |
8 | 300 |
9 | 765 |
10 | 1998 |
11 | 5255 |
12 | 14027 |
13 | 37670 |
14 | 102095 |
15 | 278262 |
16 | 763022 |
17 | 2101905 |
18 | 5816142 |
19 | 16153148 |
20 | 45017423 |
21 | 125836711 |
22 | 352723949 |
23 | 991143727 |
24 | 2791422887 |
25 | 7877935985 |
26 | 22275473767 |
27 | 63096075118 |
28 | 179012076933 |
[1,2,4,9,20,49,118,300,765,1998,5255,14027,37670, 102095,278262,763022,2101905,5816142,16153148, 45017423,125836711,352723949,991143727,2791422887, 7877935985,22275473767,63096075118,179012076933] |