n | a(n) |
---|---|
12 | 1 |
13 | 1 |
14 | 7 |
15 | 31 |
16 | 116 |
17 | 364 |
18 | 1038 |
19 | 2652 |
20 | 6310 |
21 | 14000 |
22 | 29414 |
23 | 58786 |
24 | 112720 |
25 | 208012 |
26 | 371516 |
27 | 643856 |
28 | 1086601 |
29 | 1789515 |
30 | 2883289 |
31 | 4552275 |
32 | 7056280 |
33 | 10752060 |
34 | 16128424 |
35 | 23841480 |
36 | 34769374 |
37 | 50067108 |
38 | 71250060 |
39 | 100276894 |
40 | 139672312 |
[1,1,7,31,116,364,1038,2652,6310,14000,29414, 58786,112720,208012,371516,643856,1086601,1789515, 2883289,4552275,7056280,10752060,16128424, 23841480,34769374,50067108,71250060,100276894, 139672312] |