n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 7 |
4 | 22 |
5 | 82 |
6 | 260 |
7 | 912 |
8 | 3158 |
9 | 10920 |
10 | 38385 |
11 | 134652 |
12 | 474953 |
13 | 1680801 |
14 | 5960094 |
15 | 21192029 |
16 | 75492493 |
17 | 269409262 |
18 | 963003740 |
19 | 3447075784 |
20 | 12354841859 |
21 | 44333177653 |
22 | 159250306113 |
23 | 572602762173 |
24 | 2060689223094 |
25 | 7422109110741 |
26 | 26752896159623 |
27 | 96498088175421 |
28 | 348296867524920 |
29 | 1257893866073062 |
30 | 4545530514677703 |
31 | 16434464166065112 |
[0,3,7,22,82,260,912,3158,10920,38385,134652, 474953,1680801,5960094,21192029,75492493, 269409262,963003740,3447075784,12354841859, 44333177653,159250306113,572602762173, 2060689223094,7422109110741,26752896159623, 96498088175421,348296867524920,1257893866073062, 4545530514677703,16434464166065112] |