n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 33 |
3 | 126 |
4 | 419 |
5 | 1260 |
6 | 3509 |
7 | 9185 |
8 | 22842 |
9 | 54395 |
10 | 124784 |
11 | 277059 |
12 | 597644 |
13 | 1256341 |
14 | 2580363 |
15 | 5189185 |
16 | 10236710 |
17 | 19840410 |
18 | 37832553 |
19 | 71060190 |
20 | 131610897 |
21 | 240585292 |
22 | 434431132 |
23 | 775483785 |
24 | 1369359198 |
25 | 2393425484 |
26 | 4143057525 |
27 | 7106240582 |
28 | 12083072562 |
29 | 20375932566 |
[1,7,33,126,419,1260,3509,9185,22842,54395,124784, 277059,597644,1256341,2580363,5189185,10236710, 19840410,37832553,71060190,131610897,240585292, 434431132,775483785,1369359198,2393425484, 4143057525,7106240582,12083072562,20375932566] |