n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 57 |
5 | 301 |
6 | 2251 |
7 | 15583 |
8 | 138209 |
9 | 1153603 |
10 | 11592451 |
11 | 111381348 |
12 | 1235739385 |
13 | 13276480803 |
14 | 159935056555 |
15 | 1884023828326 |
16 | 24356065951617 |
17 | 310189106485419 |
18 | 4266048524240323 |
19 | 58124516559463590 |
20 | 844705360693479801 |
21 | 12213285476055278959 |
22 | 186543178982826381387 |
[1,1,3,10,57,301,2251,15583,138209,1153603, 11592451,111381348,1235739385,13276480803, 159935056555,1884023828326,24356065951617, 310189106485419,4266048524240323, 58124516559463590,844705360693479801, 12213285476055278959,186543178982826381387] |