n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 39 |
4 | 411 |
5 | 5445 |
6 | 86805 |
7 | 1616895 |
8 | 34448715 |
9 | 826093485 |
10 | 22017673125 |
11 | 645633501975 |
12 | 20655688959675 |
13 | 715958472554325 |
14 | 26726481024167925 |
15 | 1068988088284491375 |
16 | 45608095005687088875 |
17 | 2067503007329827192125 |
18 | 99238033465208117605125 |
19 | 5027986481205385725402375 |
[1,1,5,39,411,5445,86805,1616895,34448715, 826093485,22017673125,645633501975,20655688959675, 715958472554325,26726481024167925, 1068988088284491375,45608095005687088875, 2067503007329827192125,99238033465208117605125, 5027986481205385725402375] |