n | a(n) |
---|---|
1 | 1 |
2 | 9 |
3 | 45 |
4 | 165 |
5 | 495 |
6 | 1287 |
7 | 3003 |
8 | 6435 |
9 | 12870 |
10 | 24309 |
11 | 43741 |
12 | 75465 |
13 | 125445 |
14 | 201675 |
15 | 314523 |
16 | 477015 |
17 | 705012 |
18 | 1017225 |
19 | 1435005 |
20 | 1981845 |
21 | 2682559 |
22 | 3562131 |
23 | 4644255 |
24 | 5949615 |
25 | 7493982 |
26 | 9286233 |
27 | 11326425 |
28 | 13604085 |
29 | 16096905 |
30 | 18770031 |
31 | 21576079 |
32 | 24455955 |
33 | 27340500 |
34 | 30152925 |
35 | 32811945 |
36 | 35235465 |
37 | 37344615 |
38 | 39067875 |
39 | 40344975 |
40 | 41130255 |
41 | 41395240 |
42 | 41130255 |
43 | 40344975 |
44 | 39067875 |
45 | 37344615 |
46 | 35235465 |
47 | 32811945 |
48 | 30152925 |
49 | 27340500 |
50 | 24455955 |
51 | 21576079 |
52 | 18770031 |
53 | 16096905 |
54 | 13604085 |
55 | 11326425 |
56 | 9286233 |
57 | 7493982 |
58 | 5949615 |
59 | 4644255 |
60 | 3562131 |
61 | 2682559 |
62 | 1981845 |
63 | 1435005 |
64 | 1017225 |
65 | 705012 |
66 | 477015 |
67 | 314523 |
68 | 201675 |
69 | 125445 |
70 | 75465 |
71 | 43741 |
72 | 24309 |
73 | 12870 |
74 | 6432 |
75 | 3003 |
76 | 1287 |
77 | 495 |
78 | 165 |
79 | 45 |
80 | 9 |
81 | 1 |
[1,9,45,165,495,1287,3003,6435,12870,24309,43741, 75465,125445,201675,314523,477015,705012,1017225, 1435005,1981845,2682559,3562131,4644255,5949615, 7493982,9286233,11326425,13604085,16096905, 18770031,21576079,24455955,27340500,30152925, 32811945,35235465,37344615,39067875,40344975, 41130255,41395240,41130255,40344975,39067875, 37344615,35235465,32811945,30152925,27340500, 24455955,21576079,18770031,16096905,13604085, 11326425,9286233,7493982,5949615,4644255,3562131, 2682559,1981845,1435005,1017225,705012,477015, 314523,201675,125445,75465,43741,24309,12870,6432, 3003,1287,495,165,45,9,1] |