n | a(n) |
---|---|
2 | 1 |
3 | 4 |
4 | 8 |
5 | 38 |
6 | 209 |
7 | 1400 |
8 | 10849 |
9 | 95516 |
10 | 938441 |
11 | 10179149 |
12 | 120748974 |
13 | 1554688240 |
14 | 21588485677 |
15 | 321561688748 |
16 | 5113709884902 |
17 | 86469576394028 |
18 | 1549114961438599 |
19 | 29309613834899864 |
20 | 583986501706555597 |
21 | 12222118836543561940 |
22 | 268060239251978779839 |
23 | 6148136982942476816891 |
[1,4,8,38,209,1400,10849,95516,938441,10179149, 120748974,1554688240,21588485677,321561688748, 5113709884902,86469576394028,1549114961438599, 29309613834899864,583986501706555597, 12222118836543561940,268060239251978779839, 6148136982942476816891] |