n | a(n) |
---|---|
5 | 1 |
6 | 5 |
7 | 20 |
8 | 60 |
9 | 160 |
10 | 381 |
11 | 845 |
12 | 1760 |
13 | 3495 |
14 | 6660 |
15 | 12267 |
16 | 21935 |
17 | 38230 |
18 | 65140 |
19 | 108785 |
20 | 178437 |
21 | 287975 |
22 | 457965 |
23 | 718575 |
24 | 1113680 |
25 | 1706533 |
26 | 2587655 |
27 | 3885615 |
28 | 5781830 |
29 | 8530625 |
30 | 12486429 |
31 | 18140360 |
32 | 26169335 |
33 | 37501595 |
34 | 53403915 |
35 | 75597130 |
36 | 106408670 |
37 | 148973260 |
38 | 207496090 |
[1,5,20,60,160,381,845,1760,3495,6660,12267,21935, 38230,65140,108785,178437,287975,457965,718575, 1113680,1706533,2587655,3885615,5781830,8530625, 12486429,18140360,26169335,37501595,53403915, 75597130,106408670,148973260,207496090] |