n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 10 |
4 | 27 |
5 | 74 |
6 | 202 |
7 | 548 |
8 | 1490 |
9 | 4052 |
10 | 11013 |
11 | 29937 |
12 | 81377 |
13 | 221207 |
14 | 601302 |
15 | 1634509 |
16 | 4443055 |
17 | 12077476 |
18 | 32829985 |
19 | 89241150 |
20 | 242582598 |
21 | 659407867 |
22 | 1792456423 |
23 | 4872401723 |
24 | 13244561065 |
25 | 36002449669 |
26 | 97864804714 |
27 | 266024120301 |
28 | 723128532146 |
29 | 1965667148572 |
[0,1,4,10,27,74,202,548,1490,4052,11013,29937, 81377,221207,601302,1634509,4443055,12077476, 32829985,89241150,242582598,659407867,1792456423, 4872401723,13244561065,36002449669,97864804714, 266024120301,723128532146,1965667148572] |