n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 24 |
4 | 69 |
5 | 199 |
6 | 576 |
7 | 1661 |
8 | 4792 |
9 | 13824 |
10 | 39875 |
11 | 115020 |
12 | 331776 |
13 | 957007 |
14 | 2760487 |
15 | 7962624 |
16 | 22968182 |
17 | 66251701 |
18 | 191102976 |
19 | 551236370 |
20 | 1590040835 |
21 | 4586471424 |
22 | 13229672880 |
23 | 38160980055 |
24 | 110075314176 |
25 | 317512149143 |
26 | 915863521339 |
27 | 2641807540224 |
28 | 7620291579445 |
[1,2,8,24,69,199,576,1661,4792,13824,39875,115020, 331776,957007,2760487,7962624,22968182,66251701, 191102976,551236370,1590040835,4586471424, 13229672880,38160980055,110075314176,317512149143, 915863521339,2641807540224,7620291579445] |