n | a(n) |
---|---|
0 | 1 |
1 | 156 |
2 | 6162 |
3 | 112268 |
4 | 1219374 |
5 | 9129276 |
6 | 51697802 |
7 | 235895244 |
8 | 907129236 |
9 | 3037849828 |
10 | 9079799742 |
11 | 24680519604 |
12 | 61908797418 |
13 | 144977296932 |
14 | 319917948246 |
15 | 670283877588 |
16 | 1341750437352 |
17 | 2579499722124 |
18 | 4783532975546 |
19 | 8588601364668 |
20 | 14977318285254 |
21 | 25437258929836 |
[1,156,6162,112268,1219374,9129276,51697802, 235895244,907129236,3037849828,9079799742, 24680519604,61908797418,144977296932,319917948246, 670283877588,1341750437352,2579499722124, 4783532975546,8588601364668,14977318285254, 25437258929836] |