n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 11 |
4 | 32 |
5 | 93 |
6 | 276 |
7 | 823 |
8 | 2464 |
9 | 7385 |
10 | 22148 |
11 | 66435 |
12 | 199296 |
13 | 597877 |
14 | 1793620 |
15 | 5380847 |
16 | 16142528 |
17 | 48427569 |
18 | 145282692 |
19 | 435848059 |
20 | 1307544160 |
21 | 3922632461 |
22 | 11767897364 |
23 | 35303692071 |
24 | 105911076192 |
25 | 317733228553 |
26 | 953199685636 |
27 | 2859599056883 |
28 | 8578797170624 |
29 | 25736391511845 |
[0,1,4,11,32,93,276,823,2464,7385,22148,66435, 199296,597877,1793620,5380847,16142528,48427569, 145282692,435848059,1307544160,3922632461, 11767897364,35303692071,105911076192,317733228553, 953199685636,2859599056883,8578797170624, 25736391511845] |