n | a(n) |
---|---|
9 | 1 |
10 | 0 |
11 | 9 |
12 | 11 |
13 | 45 |
14 | 121 |
15 | 243 |
16 | 726 |
17 | 1509 |
18 | 3601 |
19 | 8385 |
20 | 17836 |
21 | 40873 |
22 | 87633 |
23 | 188855 |
24 | 409116 |
25 | 859674 |
26 | 1827160 |
27 | 3832786 |
28 | 7981398 |
29 | 16644666 |
30 | 34362355 |
31 | 70866846 |
32 | 145637147 |
33 | 297814569 |
34 | 608309130 |
35 | 1237764177 |
36 | 2512564769 |
37 | 5090761029 |
38 | 10286177231 |
39 | 20750532587 |
40 | 41778968976 |
[1,0,9,11,45,121,243,726,1509,3601,8385,17836, 40873,87633,188855,409116,859674,1827160,3832786, 7981398,16644666,34362355,70866846,145637147, 297814569,608309130,1237764177,2512564769, 5090761029,10286177231,20750532587,41778968976] |