n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | 3 |
4 | 4 |
5 | 7 |
6 | 17 |
7 | 39 |
8 | 102 |
9 | 258 |
10 | 651 |
11 | 1620 |
12 | 4028 |
13 | 9956 |
14 | 24588 |
15 | 60742 |
16 | 150108 |
17 | 371689 |
18 | 921822 |
19 | 2291257 |
20 | 5706077 |
21 | 14240518 |
22 | 35607189 |
23 | 89202758 |
24 | 223857382 |
25 | 562716179 |
26 | 1416686294 |
27 | 3571809027 |
28 | 9017514253 |
29 | 22794726763 |
[1,2,2,3,4,7,17,39,102,258,651,1620,4028,9956, 24588,60742,150108,371689,921822,2291257,5706077, 14240518,35607189,89202758,223857382,562716179, 1416686294,3571809027,9017514253,22794726763] |