n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 9 |
4 | 22 |
5 | 55 |
6 | 136 |
7 | 330 |
8 | 789 |
9 | 1872 |
10 | 4433 |
11 | 10510 |
12 | 24968 |
13 | 59409 |
14 | 141470 |
15 | 336935 |
16 | 802340 |
17 | 1910166 |
18 | 4546845 |
19 | 10822176 |
20 | 25758097 |
21 | 61308650 |
22 | 145928764 |
23 | 347350473 |
24 | 826795942 |
25 | 1968018151 |
26 | 4684451824 |
27 | 11150316882 |
28 | 26540849109 |
29 | 63174538224 |
30 | 150372815489 |
[1,2,4,9,22,55,136,330,789,1872,4433,10510,24968, 59409,141470,336935,802340,1910166,4546845, 10822176,25758097,61308650,145928764,347350473, 826795942,1968018151,4684451824,11150316882, 26540849109,63174538224,150372815489] |