n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 18 |
3 | 218 |
4 | 3194 |
5 | 53890 |
6 | 1019250 |
7 | 21256090 |
8 | 483426010 |
9 | 11895873410 |
10 | 314834663250 |
11 | 8918883839450 |
12 | 269367643864250 |
13 | 8643467766472450 |
14 | 293770652998691250 |
15 | 10546424484691428250 |
16 | 398914704362503668250 |
17 | 15860639479547463637250 |
18 | 661439858772303085871250 |
19 | 28874834455755565593004250 |
[1,2,18,218,3194,53890,1019250,21256090,483426010, 11895873410,314834663250,8918883839450, 269367643864250,8643467766472450, 293770652998691250,10546424484691428250, 398914704362503668250,15860639479547463637250, 661439858772303085871250, 28874834455755565593004250] |