n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 19 |
4 | 50 |
5 | 135 |
6 | 361 |
7 | 963 |
8 | 2570 |
9 | 6859 |
10 | 18302 |
11 | 48838 |
12 | 130321 |
13 | 347748 |
14 | 927933 |
15 | 2476099 |
16 | 6607226 |
17 | 17630734 |
18 | 47045881 |
19 | 125537306 |
20 | 334983955 |
21 | 893871739 |
22 | 2385208822 |
23 | 6364695153 |
24 | 16983563041 |
25 | 45318967619 |
26 | 120929207914 |
27 | 322687697779 |
28 | 861060384775 |
29 | 2297654950384 |
[1,2,7,19,50,135,361,963,2570,6859,18302,48838, 130321,347748,927933,2476099,6607226,17630734, 47045881,125537306,334983955,893871739,2385208822, 6364695153,16983563041,45318967619,120929207914, 322687697779,861060384775,2297654950384] |