n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 16 |
5 | 40 |
6 | 104 |
7 | 279 |
8 | 758 |
9 | 2071 |
10 | 5678 |
11 | 15609 |
12 | 43035 |
13 | 119139 |
14 | 331616 |
15 | 928572 |
16 | 2614743 |
17 | 7396880 |
18 | 20999683 |
19 | 59784414 |
20 | 170615755 |
21 | 488073987 |
22 | 1399625614 |
23 | 4023315793 |
24 | 11590737827 |
25 | 33452982391 |
[0,1,3,7,16,40,104,279,758,2071,5678,15609,43035, 119139,331616,928572,2614743,7396880,20999683, 59784414,170615755,488073987,1399625614, 4023315793,11590737827,33452982391] |