n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 39 |
3 | 390 |
4 | 1521 |
5 | 7830 |
6 | 49518 |
7 | 207360 |
8 | 951102 |
9 | 4264650 |
10 | 22185657 |
11 | 89579520 |
12 | 401428224 |
13 | 1676401110 |
14 | 7172977275 |
15 | 31972081050 |
16 | 130330236546 |
17 | 537393139200 |
18 | 2213787635712 |
19 | 8988968449530 |
20 | 36073295687070 |
21 | 150459195064320 |
22 | 590262148332288 |
23 | 2362876271009370 |
24 | 9314694641056095 |
[1,10,39,390,1521,7830,49518,207360,951102, 4264650,22185657,89579520,401428224,1676401110, 7172977275,31972081050,130330236546,537393139200, 2213787635712,8988968449530,36073295687070, 150459195064320,590262148332288,2362876271009370, 9314694641056095] |