n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 33 |
3 | 150 |
4 | 636 |
5 | 2508 |
6 | 9501 |
7 | 34674 |
8 | 123369 |
9 | 429396 |
10 | 1469733 |
11 | 4959600 |
12 | 16545597 |
13 | 54662046 |
14 | 179124837 |
15 | 582893052 |
16 | 1885479918 |
17 | 6067245570 |
18 | 19435083054 |
19 | 62006825166 |
20 | 197128631562 |
21 | 624716063502 |
22 | 1974151076946 |
23 | 6222482535642 |
24 | 19567579430643 |
25 | 61403207075448 |
[1,6,33,150,636,2508,9501,34674,123369,429396, 1469733,4959600,16545597,54662046,179124837, 582893052,1885479918,6067245570,19435083054, 62006825166,197128631562,624716063502, 1974151076946,6222482535642,19567579430643, 61403207075448] |