n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 34 |
3 | 184 |
4 | 956 |
5 | 4776 |
6 | 22986 |
7 | 118304 |
8 | 624634 |
9 | 3281346 |
10 | 17687330 |
11 | 92606914 |
12 | 470392898 |
13 | 2348031430 |
14 | 11932314170 |
15 | 62345998488 |
16 | 326780375778 |
17 | 1691296908076 |
18 | 8780141027670 |
19 | 45168987187058 |
20 | 230213109996786 |
[1,6,34,184,956,4776,22986,118304,624634,3281346, 17687330,92606914,470392898,2348031430, 11932314170,62345998488,326780375778, 1691296908076,8780141027670,45168987187058, 230213109996786] |