n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 23 |
4 | 73 |
5 | 236 |
6 | 760 |
7 | 2447 |
8 | 7882 |
9 | 25385 |
10 | 81757 |
11 | 263315 |
12 | 848056 |
13 | 2731328 |
14 | 8796769 |
15 | 28331690 |
16 | 91247671 |
17 | 293880719 |
18 | 946499521 |
19 | 3048384212 |
20 | 9817909144 |
21 | 31620469487 |
22 | 101839819042 |
23 | 327994773977 |
24 | 1056370413541 |
25 | 3402244606139 |
26 | 10957584774832 |
27 | 35291014608704 |
[1,2,7,23,73,236,760,2447,7882,25385,81757,263315, 848056,2731328,8796769,28331690,91247671, 293880719,946499521,3048384212,9817909144, 31620469487,101839819042,327994773977, 1056370413541,3402244606139,10957584774832, 35291014608704] |