n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 90 |
3 | 780 |
4 | 6630 |
5 | 55692 |
6 | 464100 |
7 | 3845400 |
8 | 31724550 |
9 | 260846300 |
10 | 2138939660 |
11 | 17500415400 |
12 | 142920059100 |
13 | 1165348174200 |
14 | 9489263704200 |
15 | 77179344794160 |
16 | 627082176452550 |
17 | 5090431785320700 |
18 | 41289057814267900 |
19 | 334658679126171400 |
20 | 2710735300921988340 |
21 | 21944047674130381800 |
[1,10,90,780,6630,55692,464100,3845400,31724550, 260846300,2138939660,17500415400,142920059100, 1165348174200,9489263704200,77179344794160, 627082176452550,5090431785320700, 41289057814267900,334658679126171400, 2710735300921988340,21944047674130381800] |