n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 27 |
5 | 74 |
6 | 201 |
7 | 548 |
8 | 1490 |
9 | 4051 |
10 | 11013 |
11 | 29937 |
12 | 81377 |
13 | 221206 |
14 | 601302 |
15 | 1634508 |
16 | 4443055 |
17 | 12077476 |
18 | 32829984 |
19 | 89241150 |
20 | 242582597 |
21 | 659407867 |
22 | 1792456423 |
23 | 4872401723 |
24 | 13244561064 |
25 | 36002449668 |
26 | 97864804714 |
27 | 266024120300 |
28 | 723128532145 |
29 | 1965667148572 |
[1,1,3,10,27,74,201,548,1490,4051,11013,29937, 81377,221206,601302,1634508,4443055,12077476, 32829984,89241150,242582597,659407867,1792456423, 4872401723,13244561064,36002449668,97864804714, 266024120300,723128532145,1965667148572] |