n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 23 |
4 | 70 |
5 | 184 |
6 | 438 |
7 | 971 |
8 | 2042 |
9 | 4125 |
10 | 8076 |
11 | 15424 |
12 | 28876 |
13 | 53189 |
14 | 96670 |
15 | 173747 |
16 | 309362 |
17 | 546456 |
18 | 958690 |
19 | 1672015 |
20 | 2901170 |
21 | 5011321 |
22 | 8621976 |
23 | 14781888 |
24 | 25263000 |
25 | 43053769 |
26 | 73186038 |
27 | 124119311 |
28 | 210055582 |
29 | 354806200 |
30 | 598245006 |
[1,6,23,70,184,438,971,2042,4125,8076,15424,28876, 53189,96670,173747,309362,546456,958690,1672015, 2901170,5011321,8621976,14781888,25263000, 43053769,73186038,124119311,210055582,354806200, 598245006] |