n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 24 |
5 | 61 |
6 | 145 |
7 | 333 |
8 | 732 |
9 | 1565 |
10 | 3247 |
11 | 6583 |
12 | 13047 |
13 | 25379 |
14 | 48477 |
15 | 91159 |
16 | 168883 |
17 | 308736 |
18 | 557335 |
19 | 994638 |
20 | 1755909 |
21 | 3068960 |
22 | 5313318 |
23 | 9118049 |
24 | 15516710 |
25 | 26198568 |
26 | 43904123 |
27 | 73056724 |
28 | 120750102 |
29 | 198304922 |
30 | 323685343 |
[1,3,9,24,61,145,333,732,1565,3247,6583,13047, 25379,48477,91159,168883,308736,557335,994638, 1755909,3068960,5313318,9118049,15516710,26198568, 43904123,73056724,120750102,198304922,323685343] |