n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 5 |
6 | 13 |
7 | 35 |
8 | 95 |
9 | 249 |
10 | 691 |
11 | 2007 |
12 | 5719 |
13 | 16823 |
14 | 49371 |
15 | 146755 |
16 | 438301 |
17 | 1319343 |
18 | 3981699 |
19 | 12129477 |
20 | 36987253 |
21 | 113456615 |
22 | 348921105 |
23 | 1077206189 |
24 | 3332120237 |
25 | 10347481901 |
26 | 32183230157 |
27 | 100372658801 |
28 | 313633257399 |
29 | 982232930081 |
30 | 3080379360481 |
31 | 9681909324247 |
[1,1,1,3,5,13,35,95,249,691,2007,5719,16823,49371, 146755,438301,1319343,3981699,12129477,36987253, 113456615,348921105,1077206189,3332120237, 10347481901,32183230157,100372658801,313633257399, 982232930081,3080379360481,9681909324247] |