n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 6 |
7 | 14 |
8 | 31 |
9 | 70 |
10 | 163 |
11 | 407 |
12 | 984 |
13 | 2445 |
14 | 6089 |
15 | 15412 |
16 | 39189 |
17 | 100217 |
18 | 257720 |
19 | 666068 |
20 | 1729169 |
21 | 4505362 |
22 | 11784473 |
23 | 30917383 |
24 | 81358804 |
25 | 214658044 |
26 | 567792612 |
27 | 1505281859 |
28 | 3999183421 |
29 | 10645793860 |
[1,1,1,2,3,6,14,31,70,163,407,984,2445,6089,15412, 39189,100217,257720,666068,1729169,4505362, 11784473,30917383,81358804,214658044,567792612, 1505281859,3999183421,10645793860] |