n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 29 |
5 | 290 |
6 | 3532 |
7 | 49100 |
8 | 750325 |
9 | 12310294 |
10 | 213446666 |
11 | 3868253164 |
12 | 72686739116 |
13 | 1407643591804 |
14 | 27964937748724 |
15 | 567853691242796 |
16 | 11751537336221989 |
17 | 247263499985110046 |
18 | 5279409371079693454 |
19 | 114199628255736623996 |
20 | 2499214354674134770354 |
[1,1,4,29,290,3532,49100,750325,12310294, 213446666,3868253164,72686739116,1407643591804, 27964937748724,567853691242796,11751537336221989, 247263499985110046,5279409371079693454, 114199628255736623996,2499214354674134770354] |